I don't think there's much that would've been done with it back in 1998. Bashir wouldn't have tried to make the moves on him. Worf is a wild card. He'd see him as a completely different person or he'd give him as much of a cold shoulder as possible and they'd never become friends.
If DS9 were made today, they'd push the angle that the new Dax used to be a woman. Homosexuality, transgender, not being completely one way or the other mentally, any of those. Bashir would have more inner conflict about it, but I still don't think he'd go for him... or would he?
... but Worf's reaction would be the same as it hypothetically would've been back then. Cold shoulder.