It's possible, yes. Several people from my home world have been in this place as well, though they've all returned to our own world now.

It's... difficult to predict if and when your friends might show up. There've been people here for years and years without someone from their homes showing up, and equally, there've been people who only are here for a short period and find themselves surrounded by familiar faces.

But even if your friends do not show up, there are plenty of friends to be made here as well. And that's including the pokemon.