Ring Of Honor sent out the following tweet:
As we noted over the weekend, Joe has a very unique deal that is similar to Rhyno. Joe will be able to work for other companies while under his deal with WWE. I don't believe it's a long-term deal and there is always a chance that they will agree to a full-time contract at some point. Joe will also be featured on the next several weeks of NXT television on the WWE Network.
It's interesting that Joe is being booked for a ROH TV taping. I would have figured that WWE would have allowed him to work independent dates as long as he did not appear on TV for another promotion.
As noted, Samoa Joe shirts are selling fast. You can get the first-ever WWE authorized Samoa Joe shirt by clicking here.