On the 60 minutes special when they are showing the final duel, on the battle status tables, holographic AT-AT's are see walking, albiet faster than normal. Are they confirmed with screen time or just thrown in the background for yet another tie-in so Hasbro can rerelease the toy again?

No, these are the full size, 4 legged ones from Empire and Jedi. The shot is brief but it's definitely there.

Are you sure they have four legs? I saw that too, and almost expected an AT-AT cameo in this scene, since there are multiple holoboards with several on-going battles on them. Just not completely convinced yet.

I do know that the AT-AP has two guns sticking out of it, so if you can´t see these in the holovideo, then it´s possible it is indeed an AT-AT or something similar.

Yep, no guns and therre were two sets of legs. I will try and get a snap shot of it.