Marvel Studios classically brings a huge show to Saturday night at the event every year, not to mention a wide variety of comic book panels throughout the week, so you’d have to wonder how that relationship may change things.
Frankly, it would be amazing to see Marvel create its own dedicated convention, though as Kevin Feige points out, the big conflict is with San Diego Comic-Con.
There’s already a biennial conflict that happens with the D23 Expo, where Marvel Studios always has a presence, and the institution would surely only be challenged further by an additional event.