WindupSkeleton
[14] Master
Hard to say until we get out hands on the game and compare. At the VERY least they'll have manually updated all the textures and models.I wonder if it was easy to port the old stuff to the new engine.
We know some pieces have new dye channels which although it sounds simple in practice is definitely extra work, and if the physics engine is new then it'll be likely a lot of pieces need animation rigs/skeletons altering to adjust for that.
But yes it does depend on a number of things. You get the impression of lot of people think it's as simple as copy and pasting.