If it was successful, then it just seems natural that they'd continue to license the IP out to let those who do know games do their thing with franchises, and honestly the in-house production of games for Disney always seemed off.
http://www.ign.com/articles/2008/05/23/capcom-releases-lifet...
(NES) DuckTales outsold all their (NES) Mega Man's. It's an interesting comparison because DuckTales shares a lot of similarities with Mega Man.
Disney franchise sales for them ranks 4 in total which is high, but still misleading because Resident Evil is ranks 1 and they weren't making Disney games in that era where more people bought video games. I speculate the Disney number would be much bigger if they did.
So this model is proven. Despite the hypothetical risk to not owning the IP, there was always somebody willing to pay and take the gamble.
Say a game is a hit and makes the game studio a lot of money. Disney's going to see that and demand more for licensing fees. What is the studio going to say? No? It isn't like the studio can start releasing games with those characters without Disney's blessing.
Or maybe it will work, who knows. It will be interesting to watch.