Guild halls and housing would be interesting. Champions Online has hideouts, I don't see why Neverwinter couldn't have those too. Roleplayers like them and they're a nifty little fun thing. I'd also like to have 1v1 and 2v2 dueling. Also some big open pvp area could be fun. The ones in IWD are too small in my opinion.
Servers getting clogged happens SOOOO often with MMO's (and some other games) when something new and exciting is coming out. Sure it sucks bananas but all we can really do is wait.. And they should learn that they need more bandwidth before rolling out bigger updates. Patience, my friends.
I picked this: My character's personality is based on me, but its appearance is fictional. But this doesn't mean my characters are exactly like me: They're more like little pieces of me, where some part of me is their strongest ability.