Sounds great.
-----
It'd be nice if we got 4 versions of it.
1st version: The arena/map playable as if it was ABD.
2nd version: same as the 1st but with a cube/block falling near by.

3rd version: same as 1st but playable as if it was xspar.tbm
4th version: same as 3rd but with a cube/block falling near by.

It's really not that much work. Just some changes for each version of the mod.

The hard part is the terrain/buildings.