Do you guys think he will be back?

i think that telvanni tower in the trailer was his.It was filled with dwemer artifacts,besides,i don't think the red year might have been any challenge for him at all,if anything,he probably knew Red Mountain/Dagoth Ur was going to become very unstable after the Nerevarine used the tools on it and was fully prepared for the event.

What do you guys think?

Rumor is that it will be Neloth not Fyr