Well Halo is the obvious one
As for a Gears, I am not so sure, it sells well, but I DEFINITELY don't want Gears 4. I would happily take a game set during the Pendulum Wars though (but yes I would miss Marcus). The end of 3 had a very nice sense of closure and I don't want anything after that, everything was done
For the PS4 one, I said FF, but I don't think that will do that well as people will just get it for PS4. I don't really think that there is anything that can really crack Japan, but a spiritual successor to Lost Odyssey would probably go down very nicely (well I would certainly like it)
In terms of actual sales, I think that Forza would be a good shot, as they seem to be coming regularly and selling quite nicely







