I doubt they will. Wii has been third party repellent for whatever reason, despite having by the the biggest userbase and being easiest and cheapest to develop for. Which is a shame, considering how strong the Wii software sales are even without them. Imagine if Wii recieved PS2 like support, the games sales would be unimaginable..
But I digress.. I don't think Wii is done with the strong third party games just yet. There is obviously DQIX and Last Story, and who knows, maybe sequels to games like Epic Mickey and Little King's Story. Conduit 2 and Lost Shadow look good. Will Wii have many blockbusters from here on out? Doubtful. But that doesn't mean there won't be quality. More obscure stuff like Little King's Story, Rune Factory, Zack and Wiki, etc will probably keep coming, though they won't recieve much of a look by most because of limited appeal and lack of marketting. Sadly, the few quality third party games on Wii generally tend to have a limit appeal.
In terms of more true heavy hitters like Epic Mickey, Monter Hunter Tri, and DQX, Nintendo is basically stuck with what they got now until they release a new console, and even then support will probably pale in comparison to MS and Sony as a result of the strength of Nintendo made franchises scaring them off.
