I am looking forward as well. As you know I am no stranger to new meshes and textures, but new animations interests me greatly ;p

I think you will be happy to hear that very soon (TM) we will be able to generate working advanced physics meshes. That get properly calculated by AIgrid and such.

Sneaky sneak peak
http://imgur.com/4fgpDnC

Sadly, currently the solution does not involve LSTools, but rather a bullet physics exporter in C4D. But anyway, I think we will get a proper solution for this soon. And then there is no stopping us adding new assets to the game. I will write a tutorial how to do said ramp/stair thing once it's possible to do with lstools.

Sorry to talk so much about my stuff here, I am very curious about your mod and hope it becomes a huge success