Players who are taking chances playing in the new areas are finding the experience there is lacking for the effort it takes.  They are designed with small groups in mind but the rewards are lacking in the experience gain for that effort.  Players with AP requirements are the players with the higher ranks are seeing little progress for the time spent in these areas.  The loot tables are geared for the area but experience is non exsistent for players who can hold the AP required to farm these areas.  A slight boost would give the desired effect of making the areas more benefitial to geared end game players.

The amount of experience should be a reward for the effort of the difficulty a 5 to 8 percent increased group exp would be warranted for this effort.

If giving these areas a xp boast will not suit the goals of the programming them may I suggest as a slight alturnative to boost of duration for scrolls and or pots of enhancement along the lines of double their presant durations.  Or adding the experience books back in the game with a level use restriction or area use restriction this may porvide addition revenue to make these available in the pearl shop.  

But there is already an 1000% bonus event, you want even more? lol...

Even with the 1000% event going on it's lack luster XP.  You get the same if not more on Mirumoks when there isn't an XP event going on.