The youngest brother is seme. The middle brother was planning to be seme, but I think he's going to be surprised and be uke (if they ever get around to it). So I can see Raita go either way. He's learning how to seduce from a gigolo, so I can definitely see him being seme (plus I can't imagine Ogata having the cojones to push Raita down). But then I can also see him being a Queen Uke. Commanding Ogata to do him and how. I could see him being an Emperor of the Night or a Butterfly of the Night. Well, I'll be happy with either :)
I don't see him as any different from how he was before. Raita that is.
Also, Fuuta is the youngest and he's the one I absolutely despise the most. I prefer the middle brother's story to his OR Raita's. At least Shouta gets put in his place more often than either of those two.
I also do believed that he is definitely a seme, he only learn how to do it with a guy from that gigolo. One thing that all naruse brothers have in common is that there is only one person they are truly love, just only one, the youngest has only messing around and teasing his lover since middle school. The second one though he slept around, he truly adored his loved one the most, even went and did things that it was quite unacceptable, to protect his lover(he is my least favourite though).
This also applied to raita (in his case he save himself to do it with his loved one, he is so adorable and romantic, isn't he?) many clues shown through out the series, the obvious one was where raita found out that Ohara has girlfriend, then allowed him to go see her and then show up in the same cafe where Ogata left heartbroken, he, then comforted ogata in his funny arrogantly way of saying thing. Ogata-san please hangs in there, he really loves you. (๑•ㅂ•)و✧
Not to mention, we've seen Ogata around since the first series together with Tooru and Hisashi. Also, I found out somewhere on Japanese forum confirmed the pair, Raita x Ogata.
Not sure whether you guys notice this or not, Raita is quite different from the very first time his character got introduced to us on the first series. Perhaps, mangaka decided to make him to be the way he is now, caused after a little while, we just recognised him as he is now.
I might be wrong, but judging from other Naruse, he is a SEME, this is Akuma series after all. It'll be very interesting to see how raita makes his move on ogata.
I'm waiting to buy a copy for the new chapter, just to see the story. ლ(´ڡ`ლ)