Hi again,
Do you intend to insert new subclass options like Fighter - Marine, Sorcerer - Storm, Wizard - Artificer and Rogue - Swashbuckler?
I had read in some point on this topic than you don't wanna add none feature from UA, but we could customize things like race (as you suggested).
Do you intent to open the option to customize subclasses in the future?
A last, there an error over Rock Gnome.
There says on Artificer Lore Feature: Advantage on intelligence checks etc... But the Player Handbook says "Whenever you make an Intelligence (History) check related to magic items, alchemical objects, or technological devices, you can add twice your proficiency bonus, instead of any proficiency bonus you normally apply."
Thanks!!