Almost everything on normal has a max level, even the keyed dungeons. The Steps of Torment is easy at level 80 (and pointless). So I think the expansion would be the same.
With my current game, the next big equipment unlock level is 65 as well. That should make everything easier. One of the new blueprints I got tonight was for a level 90 item. I had forgotten the max level was 100 now.