I think the money cow WoW will be ported...
Starcraft2 I like a lot more but you cant charge monthly money from people...
After how much trial & error?
I realize Linux users are not Windows users, but how well would WoW have sold if the installation was as painful as a Wine setup can be for Joe User? If the install-to-run experience is a pain in the arse, this is a barrier to adoption. In commercial terms, this has financial ramifications.
Not defending Wine as an excuse for native ports though, don't get me wrong.