Just to let you know, I haven't read any of your spoilers or anything.

I am doing my damnedest to ignore everything like that now for the next two months. After all, it is only 2 months away. I
should be able to resist reading it all, right?

Anyway, I don't know if any of the spoiler topics were discussed in non-spoiler warning form, but I will just assume that they weren't.
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I just wish that Harrison Ford hadn't been so concerned about his image and Hollywood standing, by necessitating such a large part in this movie. I mean, is it not a bit late to be playing a swashbuckling hero? He is in his seventies and seems very tired in these clips, for just standing around. It might compromise the movie. Luke as a Yoda-like professor of The Force is at least a little more organic to the story. I hope that Leia isn't just hanging around, looking for stuff to do, most of the time.
There is nothing wrong with Harrison Ford. First of all, as I said the other day, I would think most men would hope to look as good as he does when they reach that age - if they are lucky enough to reach it. And, really, he is not that
old of a man. Second, I think it is pretty pathetic that a man in his 70's looks more like a man than most of the ones roaming around in their 20's and 30's nowadays. And third, because of that fact, I think he looks like he is much more capable of playing a hero that can save the day over most of those other guys in Hollywood.
And I really want to see all 3 of them in this film. Of course I do. I am really curious to see how the story will be told with the old and new characters together. I also think, in a way, they kind of needed to get them on board - at least for the first one - to get the rest of the saga started. I don't think it would've worked as well with a bunch of new characters and none of the old.
Well, apparently it's Adam Driver. We've seen him unmasked, right?
Unless -- CRAZY SPECULATION -- Luke IS Kylo Ren/the masked man -- but he uses Kylo Ren/Adam Driver as a false identity. Understand what I'm saying? Let's say this guy makes appearances unmasked. What if Luke is this new masked villain, and we're being tricked into thinking he's Adam Driver, but that's only because Luke makes everybody think the masked villain is Kylo Ren/Adam Driver, when it's really Luke. That could be a twist. That Adam Driver is simply a stand-in for Luke, to hide his secret identity, to keep people from knowing he's turned to the Dark Side.
I doubt it but it's something that crossed my mind.
I finally got around to showing my mother the trailer yesterday. She said that exact same thing you did. I have been thinking something like this, too, but I don't know. I am trying my best not to speculate too much. My mind has really been going a little crazy, though. I have been creating all sorts of situations from that trailer (and the other 2). So, I will see if I am right about any of it. Truthfully? I am hoping that I am not.