I'm cautious about the Arakocra race but I'd allow them to see how they work out in playtests. The other races look sweet.

I like a lot of the new spells.

It's a little disappointing that there's no new spells for Clerics / Paladins and few for Bard.

Also the Fire element has more than enough support through spells. It would be nice to see more love for other elements such as lightning. Or better yet, introduce a feat that lets you substitute elemental damage, so you can make Fireball into Lightningball. It would solve all problems.