Valkyrie sucks at actually helping her allies in combat. She isnt a guardian that can just jump in and nuke people, she isn't a Nova that can stop an enemy push with their black hole suction and Ice wall, she is supposed to be a support for her allies and simply healing every few seconds doesn't cut it.

Here are an example of some changes I would like to see to address this issue:

Awakening:

Strong Defense/Guard:

-Allies within a short distance (Similar to Elion's Blessing distance) Gain 30% DR on 1s buff that refreshes every second.

Shield Push:

-Animation speed incread, FG added. "Push" effect that pushes players (like knockback but more distance and not a CC) added. 

-Prime Shield Push: Gains increased width and a second hit

Lancia Iustitiae:

-Initial animation speed increased, attack hits unified into a single multi-hit attack that functions similiarly to Ultimate Divine Power. Hits on allies provides 50% Damage reduction and 50% special attack evasion for 1s.

Divine Descent:

-Effect changed to remove debuffs and provide debuff immunity for 10s. 

Shining Judgement of Light:

-20 AP reduction effect added. Super Armor added.

and just to make the alternative choice more competative:

Divine Light of Judgement

-All hits unified into first part of attack

The +DR on qblock may be a bit much, Prime shield push would be a decent idea to help succ be less boring.
Imo, they should make cel spear a 5sec cd then people could grab the rebam heal instead of relying on rebam cel spear as much. 
Seperate Qblock guard from movement skill's guard.

Would be nice to see the newer rebams be usable.
I'd like to see Shining Judgement of light have damage removed, animation shortened, SA, and remove debuffs (even if its just slows), +10dp (like on divine descent) for you and those around you for 10 sec. Small aoe, 1min+ cd instead of 20s
So divine descent is more of a dmg buff vs shining judgement of light is a debuff remover.

With all the ranged attacks + slow stacking, being able to get in and out easier, heal or kill, and remove the bullshit slows for a short period of time, would do wonders.
Plus if they added FG to Divine judgement of light and lowered the CD, you could choose between it and divine slam for a downsmash. Then choose between divine descent and shining judgement of light for a support buff. And Cel spear being a lower CD, choose rebam cel spear for more dmg/cc catch or the rebam heal to be more supportive.

While we're at it, Ult blitz stab should be reverted to how it use to be when it was applied to normal blitz stab. Have ult blitz's kd override normal blitz's knockback, lower the damage a little, remove the smash (so you're kinda forced to take a rebam smash). After we got the new skill, Divina Inpulsa, I've just been keeping it locked.

Well the block buff isn't applied to valk, just allies near her (although if 2 valks are shielding near each other they could buff each other). The idea is to give her presence at the frontlines where there is heavy incoming damage, and for her to have the ability to help protect allies even if her heals are down.

Valk dont need anything, It's not reasonable to ask for anything.

Once the witch,wizard is nerfed,
I have no doubts that we will be the next target of the Class Cancel Culture of the SJWs that have arrive on BDO.
Witch hunter bigot always needs a target. After the wizard and witch, we are with the guardian in the sights.

let's stay humble. We are probably going to eat a nerf so severe both on Awakening and Succession. No points of asking for anything when we will without any doubt, losing everything.

Too many new players have started playing Valk. We are FOTM. No longer a mythical creature. Instead of the dissuaded them from playing Valk ,We happily invited  them and been warm and cozy.  We are going to pay a dear price of our kindness.

May Elion protect us.

Irrelevant. The point is to make Valk a block class with her own identity instead of a dated prototype of Nova and Guardian with a few heals. Worrying about meta-strength can come later. If they decide to nerf valk it won't be because of any logical reasoning, so worrying about "cancel culture SJWs" or whatever is pointless.

It is more the idea that we will not be understood on a specific orientation on a Role as long as our class remains in its dominant position. and even then i would prefer valk to remain mediocre as best for a long time. It's boring to have become a class FOTM.
Valk must not become those class brains dead that are Nova Succesion and Guardian.

The valk must have some gaps, openings, weakness. It must remain the class that shines when it is mastered and mediocre when not mastered.
 
Personally, I keep many people alive in node war. Shai's best friend with a 40% Heal every 8 sec.All the DP, the Accuracy buff, I am completely satisfied with my support capacity.

I am not a fan of any of your completely overtune proposals ^^.

Valk is an extremely potent support class, so much so that their support capabilities surpass witchards in some aspects.

With that said, all the buffs posted in the OP are overtuned and beyond overtuned (you want a 1s cycling mini-pa?)

OP suggestions are a bit much, but I do support making more pre awaken skills viable for succ valk, to make it more fun. As it is now, succ valk is boring af, same bs spam of skills. Could even be what makes succ valk have more of a skill ceiling. There is a number of skills that have potential, but aren't really usable or worth being used.  Hell, succ valk can't even do the kick-counter spam with prime counter. (last I tried) 

Our new rebams, I tried them out, they're pointless to even skill in. If I need a down smash, I'm going to use hasti, divine slam, or even divine power. I'd like to see at least 1 of them be worth the skill points.

I'm still for ult blitz stab to be reverted how it use to be, even if it stayed a knockback. Or to make the new skill, divina inpulsa, cancel ult blitz stab. Wouldn't even mind if it did the full animation when canceling ult blitz. -Tossing this out there, just wanna see ult blitz more useful, even if its making it usable while normal blitz is on cd. The slow second hit drives me nuts. xD

I play succ, back to the game after a long break, and despite the gear gap i'm facing, it feels ok to me and though I don't have the damage anymore to properly kill people without having to extend with downsmashes 4 times, I find the class very useful and polyvalent as a support:

party buffs, long duration surface cc (with shield throw, to catch iframe classes or preventively protect a mate), grab, heal, PA and protection with your body (against ranged projectiles). Plus the way you can just tp in the backlane of the enemies, forcing them to turn their back to your allies or be cc'ed, is insane. I'm playing it since the release and still love it the way it is.

No thank you. We are in a good position....the best we have been in a while. While I would not scoff at buffs and changes that go in our favor...what that leads to is heavy nerfs down the line when people start claiming how OP we are.