Why bother with a Star Wars Vehicle? Piss of a million Dr Who fans and make him transform into a Dalek!
What an interesting concept! Mickey: A steamboat of course! Donald: No alt/vehicle mode. Just make some horns pop out of his head and give him big sharp teeth. Evil Donald FTW! Goofy: See below. Pluto: A bone! YES!!!! Ultimately, I think that there are some intersting creations that could come of this idea but it would never be put into practice. These are two areas that are way to far apart in subject matter for it to work effectively enough for any toy company to actually generate a profit.
Let me rephrase that, mickey mouse should not have gigantic robots that KILL AND DESTROY THINGS GOD DAMNIT! If they really want transforming disney toys they should make them themself. ... The only good thing to come out of this will be toy story tfs. maybe.