I would love playable goblins, though I do feel we should get all the core races in first. We're missing gnomes, half-orcs, and dragonborn. Which is a big shame for me because half-orcs and dragonborn are my favorite core races.
I'd also argue we should get Githzerai as a priority option as well, as we already have Githyanki. Githzerai would just need different dialogue options and racial bonuses since they look almost identical to Githyanki.
After that who knows? Goblins, hobgoblins, and even bugbears are possible thanks to Volo's guide. Personally I really, really want Lizardfolk even though I am reasonably sure it won't happen. I want to re-create my Lizardfolk ranger and Lizardfolk moon druid from old DnD games I've played.
