The thing is, we've seen nothing indicating dissent among the Titans. We've seen an issue between Odyn and the rest of the Keepers but there is nothing new about that, we've known it since the Chronicle and Legion. It will be very interesting to revisit Ulduar though, with his return, Odyn seems to have taken Hodir and Thorim back on his side but who knows what happens if Tyr can show up again (especially if he can get Archaedas back as well). But again any civil war will be between Keepers, not Titans.