Yeah, I'm all over the place with this one.
I still don't really know who the First Order is, and I'm trying to decide if I care.
The idea of a Kyle Ren/Rey alliance is interesting but weird. They're both so flawed as Jedi at this stage, to put it mildly.
Intriguing, but confusing. I want to see this more than I did before, but not sure I want to spend the money for it.
The First Order is basically all of the survivors of the empire after the battle of Endor who regrouped to continue as a new entity. The books go in to more details about how they operate and how they got to where they are now. But as far as the movies go, the crawl in episode 7 said they were basically survivors of the fallen empire and regrouped to form the first order. It is still unclear how Snoke is a part of this.
From the trailer, it definitely appears that Kylo and Rey may join forces. But this could still just be a misdirection. This could be fancy shots to make it look like that. But it could still be a twist or part of a plan on Rey's part to infiltrate Snokes hideout. Just speculation.
I find it intriguing that someone on the dark side and light may join together since they are both lost on their current sides. This could be interesting as episode 9 could be the first order and/or the resistance stopping the combination of Kylo and Rey from what ever their combined objectives are.