As reported, Drew McIntyre made a surprise appearance during NXT TakeOver: Orlando as he was shown sitting ringside. WWE would later announce that Drew has in fact returned to the company and signed with NXT.
The Wrestling Observer is reporting that the deal came at the last minute, with Drew speaking to Triple H either that day, or the day prior. The Observer is also reporting that the main reason why Drew was signed to NXT, was to have someone replace Shinsuke Nakamura when he gets called up to the main roster. There’s also speculation that Drew could potentially win the UK Championship, to get that started.