The current intro for non evokers implies that those classes exists pre stasis…
This brings about a few issues…
Lorewise, how can dracthyr be warlocks if they went in stasis 10k years before the war of the ancients, there was no demonic activity on azeroth before that…
How can they be monks eventually when the pandaren was 12k years before the war of the ancients. Again, before they were out in stasis.
So when dracthyr can eventually be monks, it won’t make sense from a chronological standpoint.