Will it be 2d or 3d?

Or a mix, i searched the forum for a good hour trying to find this answer. I am guessing it will be 3d since i have seen 2 screen shots of it, but i am just making sure. Also since i am posting this what do they mean by rebuilding?

Do you think v13 should be more like 3/new vegas or 1/2, thats one 3d or 2d topic

Just do a search and visit the website of earthrise and masthead studios and you'll see the answer to your question, as that's the game engine & co-developper being used to make Foo.