Pixar, Miramax...
Generally, Disney has the corporate sense to leave well enough alone- how else would "Kill Bill" have been made? We're going to see, probably, Marvel talent being used for children's comics, which is fine by me- I like the idea of kids growing up reading comics. The larger the comics buying audience, the more comics on the market, which means more interesting, less selling titles can survive.
DC is able to put books like "Jonah Hex," which doesn't sell very well, but is consistently excellent, out on the market because of Time Warner. If the Disney deal means we get to see books like, say, "Captain Britain," not fold, then, wonderful.
I doubt much will change with the 616 Marvel U. And movie franchises like "Iron Man" are already locked.
My problem with this is that I just don't care for the idea of like, five, companies owning the entire nations media- even down to comics.