For raid guilds who are struggling to beat a raid another crazy concept idea I had would be to have favors in each raid sort of like the anniversary quest defending knowledge. Once you zone in you hail an npc and have a list of buffs and such you can accept. For each favor you accept there will be one less item in the chest. They could also have a raid challenger achievement linked to beating raids without receiving any favors. If the buffs are significant enough such as x amount of HP, x amount of increased dps, x amount of resistance and so forth it might allow smaller or more inferior raid forces to progress without changing any mechanics. Just another idea I would throw out there to see what raiders think. The same concept could be applied to group missions as well minus removing loot. Just link not accepting a favor to the challenger and this could help struggling players progress through the mission part of an expansion.