Will there be more playable races in the future?

Supposedly, more races will become available, but only "through advancement and exploration of the world". From my understanding of it (and I'm new here too, so take this with some discretion), as certain events happen in the world, new races will appear in the setting and become available for players. For example, looking at the list of currently available races, you might have noticed sylphs, aasimars, and tieflings. Previously, they were not allowed, but recent contact between Rook and the Cloud City where those three races live has introduced them to the rest of the setting, and as a result they are now playable. Likewise, goblins have become playable because some goblins are beginning to learn how to fit in with civilized society.

When new races become available is probably the decision of the council (again, new person making assumptions here), but it seems like they want to let races slowly be added as fits the lore and flavor of the setting. I don't know how slowly or quickly that might be, but I'd imagine that the races available now should allow most people to scratch the itch to play something a bit more exotic.

Well, I feel that it really isn't all that interesting tbh. There are all of the core rule book races, Drows and half-outsider races. You could have written Tiefling or Aasimar on your character sheet, but there are realistically very few ways you could actually play and protray those races (Same thing with Drow). I'm just bringing up that I feel that I'm somewhat restricted with creativity, when the restrictions are common races. And with most players seeming to be humans, the desire to play something like a Hobgoblin, or an Orc (Or something not along the lines of normal) just gets bigger.

Again, I don't wanna sound like I'm complaining, but I feel a little restricted. =S

I don't really understand what you mean you speak about the Tieflings, Aasimar, and Drow, but at least to me, those seem like pretty exotic races that would let people play something that feels abnormal. We're probably operating on different standards here, but even still, what about a goblin? Surely that would be something abnormal enough, right?

Personally, even though they're a core race, I think gnomes are pretty weird, too... I mean, being weird is practically their shtick as a race. But on the other hand, I also feel like all of the core races are different enough from each other that things don't feel that restrictive to me.

Perhaps you could turn this into an opportunity for a character? You could make some sort of adventurer or explorer who desires to discover new races, inspired by the discovery of the residents of Cloud City, or an adventurer who is convinced that peaceful and profitable relationships can be made with Hobgoblins. You could use the Adopted trait and play a character who was raised by Orcs or something, and thus reflects their unusual culture even if they don't have the unusual appearance of one (and there's nothing to say that some unusual tattoos or strange clothing/habits couldn't indicate said character's cultural background to further drive the point in). Maybe characters like these could lead into things that might bring the other races closer to being unlocked... After all, it's suppose to happen "through advancement and exploration of the world". Orchestrating wide-scale acceptance of and interaction with some exotic race would certainly be advancing the world, and it's a hell of a character motivation, to boot!