DmC developer Ninja Theory was almost totally silent between Dante's latest adventure and the announcement of Hellblade, but that doesn't mean it was idle.
Independent triple-A developers like Ninja Theory often take on spec work between major projects, and that seems to be what the DmC and Enslaved: Odyssey to the West developer has been doing.
Ninja Theory has in fact been contributing to Disney Infinity, according to an announcement at PAX Prime this weekend, as reported by Destructoid.
The team helped out Avalanche Software with Loki, Green Goblin and Princess Jasmine. All three will appear in Disney Infinity 2.0 (or Disney Infinity: Marvel Super Heroes if you will), which will release as a stand-alone game or DLC expansion for the original later this month.
Ninja Theory also worked on Ronan the Accuser, who is coming as DLC in January.
It's quite likely Ninja Theory had a bunch of other jobs in the interim, as well; you usually only find out about this kind of inter-studio collaboration is you scan the credits really thoroughly.
As well as producing a mobile game, we know Ninja Theory has been creating and pitching ideas to major publishers but without much luck; studio boss Tameem Antoniades revealed as much at GDC Europe, leading up to the announcement of Hellblade for PS4. A "smaller" experience than a traiditonal triple-A release, Hellbade will be published independently - but Ninja Theory is hoping to stick to the very high production values it's well known for.