For the most part anyhow.
The latest patch has unlocked the arcade and custom games. Permitting use of all 3 races, including the expansion.
This means that outside of ranked play, you can play the game unhindered. Trust me, you're not missing anything with ranked play disabled.
You can download the starter edition here if you're interested.
Reminds me of the beta days, but with fewer people here to play with.