As the titles says, I think it makes more sense. Make him more detailed than kroak, with his own unique versions of spells, faction wide buffs and a questline like drychas to unlock. Make him exclusive to characters like Arkhan(slightly modified abilities), Manfred and Neferatta*. (Maybe others vampire counts, not sure on the lore there.)
Give him a quest battle, release him along side the next vc rework
*I mean, come on, she's gonna be the next vc lord.
I like all the races. Equally. Wood elves are just the first among equals.