Blizzard released a blue post about a new trial experience for players that do not own the Dragonflight expansion. Accounts that do not own the expansion can now experience the game as Dracthyr Evokers as a new trial experience available through January 2nd, 2023:
Players that do not own Dragonflight can now experience the Forbidden Reach, Dracthyr Evokers and the first zone of Dragonflight, Waking Shores, up to level 63.