Greetings! It's Kate and I'm bring
Seamus Finnigan over from Purg. Seamus is still Seamus for the most part. Although after the events of the battle (and particularly watching Parvati slowly bleed out before that Auror came along), Seamus wants to be a Healer now. So he's back for his eighth year and much more serious about school. He also still seeing Katie Bundy.
In terms of storylines, I'd love for him to get paired up in class with someone he doesn't particularly like (why, yes, I am looking at you, Head Boy). And also, if any of his DA compradres want to give him hell for secretly dating a member of the IS, that would be good too. :)