Not that there aren't plenty of things to use them for -- despite their stock dropping on news of the WoW license loss, The9 also runs a number of other games over there, including Guild Wars, Ragnarok Online, and a few more popular Eastern MMOs (not to mention that EA has a nice stake in them). And at the very least, there's got to be a market for supercomputers with other companies and educational institutions, right? It's unlikely that all that hardware will just sit dark.
But more importantly, it'll be interesting to see how NetEase handles the transition -- we've had a few inventory and other issues here on the Western side of the world, but we've never had a major loss of character information (cue all of the Blizzard engineers knocking on wood). We're sure there are countless backups in place, but if something goes majorly wrong in the transition between hosts, it could be devastating for the WoW audience in China.