i hit lvl 80 yesterday, so as well my other friends, but unfortunately no plot or elite instance yet, or no team instance available too, when will they going to update it?
Have you gotten at least 12 characters maxed out to 80 and full cultivated/awakened?
If you're lvl 80, chances are, you have more than 12 characters to juggle, so work on getting all those upgraded. That alone should take a huge amount of time