Question before Heavensward

[ruskie]

Buying Heavensward immediately unlocks the level cap of 50, even if you can't reach Ishgard yet.
I can't say how much exp you will earn from doing lv.50 dungeons, but the quests still give no exp at 50 (except those added by Heavensward).

The level 50 dungeons mob kills in them now give exp. And the lvl50 main story quests also give exp if you have heavensward from what I understand so ideally you would want to get heavensward when you hit 49 or so so you get all the exp.