how is early access going to work?

[Rongway]

so... I won't be able to Dance as a DNC until the 2nd of July?

Are you saying that you did not pre-order and you will be buying the game on release day? Because that's what would prevent you from unlocking DNC until 02 July.

Pre-order. It comes with some neat earrings that give xp bonus all the way to 70, and you'll be able to unlock DNC on 28 June with early access.