Hmmm. The chapter ends with nariyuki saying "will you marry me?" and also, planning to have a baby. So i think that the sensei route, they will be married and have a child.
This is easily the best one so far. I kind of edge out Kirisu over Asumi at gunpoint but it's going to be a tall order beating this route. Especially with this chapter. Everything about this chapter is just lovely.
I still like the Uruka ship best, but Asumi is a close second, and damn if this one didn't have the best told story. I hope Sensei's route is even half as good as this one.