Drew McIntyre will follow up with an MRI with fears of a bicep tear. In the event it is a complete bicep tear the expected recovery time is 4-6 months. If it just a partial tear, he could possibly heel between 3-6 weeks.
Unfortunately it was just one of this 'fluke' injuries, and it did happen at the finish of the match. It is very likely in any event Drew has worked his last match in NXT as was the plan for him to be on the Main Roster by the Royal Rumble PPV at the least.
Thomas Fenton will have a Premium post shortly with backstage news from Take Over and many other injuries.