www.orlandosentinel.com/entertainment/orl-story-universal-coaster-rip-ride-rockit,0,1224962.story
Another article, basically confirming the rings will still be there and there could be 5 trains on the track at once.
Even though most aesthetics look done, the rings still have to be done and 3 trains at least tested. Think end of July/beginning of August looks more likely, with soft opening beginning July at earliest.