I didn't talk about Three Houses in detail, and now that I have some time why not post my overall thoughts and speculation about the game in this thread. We don't have that much to go by, only a 5 minute trailer, but I'll take it. So, let's begin.
First thing to say, I'm still incredibly excited for this game as I was during the last E3. I'm really eager to play a new Fire Emblem game and I'm really looking forward to it. I like the idea behind the school setting, because it allows lots of freedom for builiding the units you command, giving each of them the weapon type you like, it seems like we're back to the original Shadow Dragon. However, it does have it's consequences, as many people have stated, now all characters design seem a bit bland as all of them need to have the uniform of the school, and that is indeed a big letdown, as desings are no longer made freely but have to take a handicap incorporating the uniform to every character... I personally like the art-style, but I have to agree that desings are a bit boring due to that limitation.
They did focus on the school part a lot, so I'm guessing we'll spend even more time roaming through the place and interacting with characters than fighting on the battlefield, which it's also something I'm not sure how to feel. I'm open to this renewed "My Castle", hoping it has lots of interesting stuff, but the thing I love the most is obviously using my units on the battlefield, so I'm hoping it has more importance that the HQ. But combat for the little shown seems neat, arts seem to use the durability of a weapon rather than HP like in Echoes and doesn't seem to be attached to a weapon but rather to a character. I'm a huge fan of this change to be honest, managing the durability of weapons was something that I've missed in the last 2 FE games (Fates and SoV), and now they not only come back, but make them even more important with the arts. I'm just hoping there's some kind of armsmith that can repair weapons, and please don't make legendary weapon with uses, just no... Aside from that, I don't see anything really special in combat, there doesn't seem to be any kind of support abilities like rescue, nor pair ups at all, we just got that brigand boost or whatever it was called, but I wonder how common that would be in the first place. I have yet to see how much of an impact do the attached battalions on the battlefield, because it could be interesting. And the best thing, the new weapon type, PUNCHES!
As for the story, I'm really struggling to make any sense out of it lol. You are a child of a mercenary but suddenly you have special powers... I'm guessing Geralt banged with a dragon or some **** so you have that kind of powers. Then there's the new manakete, Sothis (Who sounds exactly like Lissa by the way), and makes it seem like an "isekai" anime, as Byleth seems to meet her when he gets the axe in the back, and somehow returns back in time or something like that... Then there's the rest of the people, which I thought would be rivals, but on the cinematics we see them chilling with each other. Either it's the beginning of the story and that's why you have all of them with you, to expose them so they can try convince you to join their house, or they will be friends the whole story. Which by the way, since almost all the continent belongs to the main houses, if they don't fight each other I don't know what kind of conflict would make the students have to travel to fight... At least Byleth seems silent at the moment, which is good in my opinion, but if you are going to make it silent I would have worked better as a secondary character, but still, we'll see how this new avatar goes.
Last, speaking of the Houses and their characters, which house would each of you choose at the moment? We know little to nothing about most of the cast, so a decision this early on will be obviously be based of trivial things. I want to go with the Black Eagles, mainly because there's girl Jotaro (Dorothea) and I want to make a meme build with her using magic and punches for the maximun Stand experience (watch her have a 20% strength growth or some **** lol) . I also dig Petra's design, and I have to make Linhardt basically Lyn+Reinhardt, so it's a bunch of memes flowing together on the Black Eagles group lol. After that the Golden Deer seems to be my next choice, I really like Claude's design, and I think that house was different from the other two in the sense that it's only nobles, with no king or emperor, so maybe that will be interesting. I'm hoping that each house will have a completely different story rather than the same told through a different house, and with the biggest wishful thinking ever... I'm hoping that there's a 4th campaing that you can unlock after playing with each of the three houses, and that will let you use every single unit from every house (Basically Radiant Dawn Part 4). But I'm going to keep expectations low on this one and think that every house will have the same story.
That's my opinion and some speculation about the game, I'm going to try snag a limited edition, but we'll see if I'm able to. I'm going to play the hell out of this game, that's for sure.