Do you expect new classes or races in expansions?

There has been alot of talk of new expansions lately, when WoD came out, there was no real new races or classes, and the same now for GW2's next expansion. In your opinion, do you feel new expansions should have new classes or races or can you be happy with a new expansion without them?

TH

Having more classes is better, you're more likely going to find something you like.

While it would be cool to have either, something major would have to happen for new races to appear that can integrate so quickly with either faction. I think new classes are always possible though and would be cool.

I prefer new classes over new races, since like Jumgei says it gives more playstyle options in the game. An extra flavor race can be a nice add but nothing which I would buy an expansion for.