The safest bet, of course, is that we’ll once again get to see the characters back in action together in the untitled Fast & Furious 10, which is being developed as the first half of a two-part conclusion – with Fast & Furious 11 being planned as the final installment of the long-running series.
That was something that certainly pissed fans off – hence the whole “#JusticeForHan” thing, but we’ll have to wait and see if that actually makes it into the canon of the franchise.
Given that they are now playing for the same team, we can probably expect that their relationship will be described as “begrudging colleagues” – though we definitely do wonder if Han will wind up being a bit angry at Dominic Toretto (Vin Diesel) and company for working side-by-side with his killer during the events of The Fate Of The Furious.