XCOM: Enemy Unknown developer Firaxis will announce a new AAA title tomorrow, 2K Games has revealed.

The game will be announced during Firaxis' Mega Panel event, taking place at PAX East tomorrow at 4:30pm BST.

But what could it be? A next-gen XCOM? A new Civilization? Whatever it is, 2K says "you won't want to miss" it.

Source: blog.2k.com