Li Shenron
Legend
I assumed the phb races are set in stone and was asking what do you want to see next in supplements or online. There is 0% chance we won't see the playtest races SOMEWHERE in the core (though where is dependant on the specific race; orcs in the MM, warforged in the DMG, elves in the PHB.)
Yes, they are of course set in stone. We don't know exactly which of the playtest races are in PHB, which in DMG, which in MM, and which have been cut. Maybe none has been cut, we can't be 100% sure.
However, those in the MM aren't automatically playable races. Which is why I mentioned that if we get (some) MM monsters with a small "as race" paragraph, then it would be great.
Orcs and hobgoblins are those which I would like most to have a playable version in core, because a lot of casual gamers (coming for example from WoW) ask to play an orc, but eventually IMHO the closest thing to a WoW orc in D&D is probably a hobgoblin.