One of the first to come to mind for me is also Lorenz. Right now he is meme-fodder but from what I have seen regarding the supposed leaks, he seems to have a major glow-up. Also of interest would be his potential development-the option where you give advice to students shows his reaction to be a sincere one(was featured in famitsu i believe?), as he most likely actually does not know what he is supposedly "doing wrong" in getting the attention of girls. Would be nice to see him grow to be a kind of mellowed out inigo, regarding the attitude (in terms of "always keep smiling etc.)this is just speculation on my part though. Also of interest are dedue(i just love him already ok) sylvain and the younger ones especially. I could imagine caspar,ignace, bernadetta and the like changing drastically in comparision to more mature students