seeing as they made the stuff account bound rather than single use at the last minute i can sort of undertsand that though. I do agree with Lou they they may be hard pressed to keep coming up with cosmetics or utility that peope will pay for.
I went straight for a bunch of premium tabs to help organise my sh*t and also a couple of the weapon glows, but now there's nothing really there for me to spend on - until they add the extra gore packs etc.
I reckon they'll retain a sizeable enough community - there's still a lot of good will there right now and the core kickstarter crowd will have already of been playing for months at least. whether that's large neough to continue funding new development rather thna just keeping it ticking over i guess we'll see.
i really hope they are able to survive it's got huge potential. I'd guestimate that combat can be improved with relative ease compared to overhauling an entire loot and item system (as in d3's case).
As for PvP - not of much interest ot me but i couldn't ever see why Blizzard wanted it so balanced and organized - my view in these matters is that most of the time the developer should simply provide the tools and let the players work out how they should use them - i.e let people create games flagged with pvp enabled and leave it as that.