Hopefully he does well there and we get a 30-40 millions for him in the summer.
Seville is 4 point from Real Madrid at 2nd spot, they are competing for La Liga title this year, the other big 2 are kinda out of it this year, Atletico is 14-pts off, Barca is 15-pts off from the the top.
If he scores around 10+ goals and contributes to them winning the league or getting 2nd, then we can certainly either get a fee from Seville, or shop him in the summer window, there will definitely be plenty of takers who will stump at least 35+ if not more.