The fact that J.A. Happ and Cole Hamels have been dealt in the last 24 hours is a direct indication that Noah Syndergaard and Jacob deGrom are not being traded this season. If the Yankees or Cubs felt deGrom and Syndergaard could have been had, they'd still be working to get them. They obviously moved on to Happ and Hamels, respectively, because they are convinced Syndergaard and deGrom are not going anywhere.
Zack Wheeler is now among the league's remaining starting pitchers expected to soon be traded. And the way the Mets handle him will likely determine whether they are preparing for a full rebuild or will try again to win in 2019.