Well, in letter 2 he explicitly stated he would NEVER considering deleting everyone's characters as many of us are quite attached to our characters, even if they did start out in darker days. :P I simply slowed down my play time to enjoy the changes as they rolled out rather than zerg for the top.

Anyway, back on topic... One thing, I'd like to see a lot more reasons to use Guild Marks in the future. Battle classes, it's not really a big deal trying to come up with them for the most part. But if you have the ability to pick them, there'd be reason to add more cool mark stuff. I'd like to see more of the upgradable traits. For instance, instead of getting Skull Sunder II or Red Lotus II, once you reached a respective rank, you could just buy an upgrade for them that added the incapacitation ability to the already standing versions. Or, to go along with other things I've suggested, stuff that's similar to the evolith system to add on to armor.