D&D General Extra Life Charity D&D Accessories - With possible hints for the Forgotten Realms books?

[Parmandur]

This explains why it said 8 species at one point. 1. Fairies, 2. Boggarts, 3. Elves, 4. Flamekin, 5. Rimekin, 6. Kithkin, 7. Changeling, 8. Dhampyr (Book of Hunger).

I'm wondering if the some of these will get additional mechanics?

Possibly some slight shifts (like maybe the Elves will have a different Lineage option or options from thebPHB?), but I suspect other than Flamekin and Rimekin the difference will be largely lore text, like with Eberroj and Wildemoujt variants.