I'm sure it's going to be the former. Tywin probably gonna scheme to put Selmy and Jorah on blast. Jorah for spying and Selmy for being for working under King Robert (unless the show already touched on that last season, I forget). I guess Tywin will think like it's gonna make Dany feel like she can't trust them dudes and cause some strife. Or maybe he is writing to make deals/alliances with others that have beef with Dany's campaign in Slaver's Bay.
in the promo daario is saying something about let me kill your enemies so maybe next week we see her find out about jorah followed by daario asking for permission to kill him. i cant wait to see people's surprise next season when tyrion and jorah meet up