I imagine you could probably make the floor tiles TLX compatible by simply having a clip that's the same dimensions as a TLX tab on one side, with a clip on the other.

The clips look to be spaced the same as TLX tabs so it should be doable, although they might be pricier since the tab side will need more material than a normal clip.

Something like this when viewed from the side:



The right hand side would match the dimensions of the regular TLX tabs and voila, floors at least would be interchangeable.

Maybe a later expansion, a bag full of TLX-Clips for the same price as the normal clip packs.