Expansion is still 3-4 months off, assuming no delays. You could be in full season 2 in like two weeks. If you enjoy it, go ahead and do it. I don't mind the grind to a point, especially because you can gear up all your characters at once. I find the AV grind mostly painless if you just put on a movie or listen to an audio book. All I do is stand at frostwolf and dot people.

I don't really understand the whole not doing anything that requires work until the expansion, as if the goal of the game is zero duplicated effort and not fun, but to each his own.