Rosenthal's source, but they're not currently looking to trade him.
Rosenthal says the Mets "might be growing more flexible" as to what they're willing to offer Reyes for an extension. The team initially hoped for three years and $45-50MM, which they now realize isn't happening. I can see Reyes getting a Jayson Werth-type contract on the open market, but 60% of the Mets' season remains.
ESPN's Adam Rubin discussed the Reyes topic recently, writing "it now appears highly likely the Mets will keep Reyes at the trading deadline, take their chances trying to re-sign him as a free agent next offseason, then take the draft picks if he ends up elsewhere."