New England Patriots offensive tackle Cameron Fleming was an exclusive rights free agent, which meant that he was either going to play for the Patriots in 2016, or the Patriots weren't going to keep him around. In other words, Fleming's future was based entirely in whether or not New England wanted him.
It looks like they do.
Per MassLive's Kevin Duffy, the Patriots have tendered the 2014 4th round pick to bring Fleming back to camp. Fleming played far more than expected in 2015 due to extensive injuries to Nate Solder, Sebastian Vollmer, and Marcus Cannon.
The return of offensive line coach Dante Scarnecchia likely played a role in the retention of Fleming, as Scar was the person responsible for scouting and drafting Fleming in the first place. Fleming will likely be a camp body, but it's also a sign that perhaps the awful Patriots 2015 offensive line will receive another shot under Scar's coaching to see how they respond.
Additionally, Scar has been effusive in his praise of offensive tackle Marcus Cannon in the past, so maybe this could serve as writing on the wall for Cannon's retention as well.