I think FOTN is destined for Yan-Aljo.
They're both good at both sides, and they uses their advantages in a very entertaining way. Yan is a great striker who comes forward and is all action. Aljo is a great and very dynamic grappler. His last 2 subs are amazing.
Yan's grappling and in particular his TD defense is quite "flashy". He doesn't just go for underhooks and kinda waits it out, he is actively trying to get the other guy off of him. And Aljo's striking is also dynamic and he's not afraid to throw flashy shit.
I think we're in for a good one, and I don't see anybody winning. If I really had to choose, I'd go Yan. He'll have the advantage striking and I don't see him making enough mistakes for Aljo to get an easy takedown. It's like 51-49 in my head.