Well there is speculation it's a prequel due to the obscene amount of dragons in the trailer. It wouldn't surprise me if we did get to meet some of the other deities. Although the only one I want to see is the Blacksmith Deity that's mentioned in the Titanite descriptions; imagine the awesome weapons you'd be able to get from him.
Unofficial "That guy" of darn near everything. Peaceful days died. Let's survive.