If they don't add them, and you're still craving the soundtracks:

http://dbsoundworks.bandcamp.com/ has a few Super Meat Boy soundtracks. You'll probably want the Digital Special Edition. (I physically have a signed Double CD copy, and it is glorious.)

http://spacerecordings.bandcamp.com/album/lone-survivor-orig... is the Lone Survivor soundtrack.

And the Braid soundtrack was linked elsewhere in the thread, but for completion's sake: http://magnatune.com/artists/braid