We've increased the level cap to 39 on Wyrmrest! Opened New Dungeons for this level bracket as well. Among various other changes done for the new cap.

Phase 30-39

New level cap: 39

New Dungeons:

Scarlet Monastery

Razorfen Downs

Uldaman 

As always you can read all the changes here: https://heroes-wow.com/en/changelogs