OR: revert to before the 2.5 """upgrade""", let Marthog keep his gear (he worked hard on that gear -FTFY), and launch a sort of "whoops we screwed up with New Coke, come back and experience the original formula all over again" campaign, which is sadly something you old farts probably remember while standing in line to get your Social Security checks. Then throw on a big fat server xp bonus for a few weeks because who cares if people have slightly more tomes so long as they are playing? Step Four mostly involves strippers and llamas. Step Five is making a number of popular fan requests (see: Kedrin thread that I'm too lazy to link, others) just for the sheer novelty of making players happy.
Revert to before 2.5 is not to make players happy but to make SoD playable again.
I always voted for drastically reduced xp gain,scale it maybe,and no more silly xp weekends which only widen the gap between vets and newbies.