There's nothing really stopping Rise of Mordor to be developed for Total war Warhammer to be honest. Sure there is a EULA that states they don't want third party IP's, but let's be real here, people are going to do it anyway. They just won't go through steam workshop and have you install the file manually. And there is little to no way to stop them. And the chances of them taking legal action is very insignificant.
However, when it comes down to it, it's up to the devs of Rise of Mordor to decide whether they should or not. Honestly if I was on the hot seat, I'd do it. The mechanics in this particular game would help your development much more swiftly. Nazguls. Trolls. Animations. Ect. But *shrugs*
Whatever you guys decide to do, you will have my support.
Mr_Onii-Chan
Quentin joined
IM BACK BITCHES!!!!!!