It's not news to any of the old players that the new content that appears at the beginning of every expansion loses grace in
about 4 or 6 months after launch. And I very much doubt that Dractyrs , dragonriding and the new talent tree will be some exception to this rule.
Blizzard knows this too and so it must already have a "rabbit in the hat" to keep us "busy" when the initial hype of DragonFlight is lost.
And here's my bet:
They will release Dractyrs for all classes.
What do you think?