I think so

If I were a betting man I'd say the updates not out because of technical issues found during QA to do with the online game.

I don't think QA really bothers too much about game play it's a lot more technical (otherwise half the games out there wouldn't get released!). Although I am guessing!

I reckon MS have probably bounced it back to the publishers at least twice, it's been a long time.....

This is all just my theory and I'm guessing really. Maybe it'll appear.