Everyone does realize Jon was preventing his ranging party, Dany, & Drogon from being overwhelmed by wights, right? Not to say the whole scenario wasn't skeptical with the timeframe and multiple deus ex machinas, but his decision in that moment to let the others safely board Drogon while he defended the high ground wasn't offensive to me from a tactical standpoint.
Either way, on to episode 7--I'm curious about the photos of Theon kneeling on Dragonstone & looking forlorn. He's seemingly coming back from somewhere looking defeated, which to me translates to: He came back from a failed meeting at King's Landing where Yara was probably murdered.
Also, since the episode is titled the Dragon & the Wolf, I'm hoping for a flashback to Lyanna & Rhaegar. We haven't had any flashbacks this season when the past two have.