The back 9 is coming very soon. Sometime after that we'll have Pinehurst #8 and Wolf Creek. More is coming.
Beta test phases can be up to a year and longer depending on the game. So far, we're ony about 4.5 months into it. Given the complexity here it may be a little while because I believe this is only a shell of the finished product.
Sit back, relax and enjoy watching the game as it grows. :)