This scene. Yes, we’re all elated to see our OTP in the same room at last.
Let’s be prepared, though, for this scene to be difficult and even ugly until it’s resolved. I’m pretty sure Kylo has brought Rey (in his ship, woo!) to Snoke in response to Snoke’s order, and Snoke is gonna make Kylo hurt her. This is how Kylo will be asked to prove his loyalty to the First Order and his leader, IMO.
Rey’s torture levitation in the trailer? Up until now, I thought Snoke was torturing her in that scene, but now I think Kylo will be doing it at Snoke’s insistence. Recall that our view of levitated Rey was from behind her head, not from Snoke’s viewpoint at her feet. Something at that moment will have to flip a switch in Kylo’s head/heart so that he’ll release her and defy Snoke.
Then, all hell will break loose and with any luck, we’ll see an epic fight in Snoke’s chambers.
That’s my guess!