Disney Infinity has already given players the ability to combine worlds and building blocks to create new gameplay around characters like Captain Jack Sparrow and Sully, though adding Marvel Super Heroes and new combat mechanics will net quite a few fans later this year.
Considering platforming gameplay might bore a lot of players, adding combat to Disney Infinity should allow for greater depth and a more immediate hook for anyone who doesn't like to build new levels from scratch.
Check out the Toy Box trailer above to get an idea for how customization options will work in-game. We'll have more coverage of Disney Infinity 2.0: Marvel Super Heroes as we get closer to launch.