You're mostly right. Disney's purchase of Marvel will certainly affect the enormous hold that Marvel has on general gaming now (in a good way, we hope), but don't forget there's also a Marvel MMO in the works. When we asked Gazillion Entertainment how this purchase will affect their Marvel Universe Online project, we were told that all they can relay at this point is a quote from Lowell Singer, Disney's senior vice president of investor relations: "On the video game front, Marvel has some smart licensing agreements with some of the best video game manufacturers in the business. As these licensing deals expire we have the luxury of considering what's best for the company and the products."
Gazillion also reminded us that their MMO licensing deal with Marvel is until 2019.