Getting in/out of the fane isn't that hard. You can teleport to/from the save book just outside. And then of course there's the teleporters later on in the game.
I do fully expect them to revamp the class system, though. I would be shocked if it wasn't made to be like 9 or something. Although they'll definitely maintain the hybrid skill idea, so they won't be able to make it exactly the same.
I really like the evolution from 6-7 classes to 8-10 classes.
9 with hybrids sounds just about perfect from where I stand.