I like it for Detroit, since they rid themselves of the Fielder contract and now can move Miguel Cabrera back to first base where he belongs. Also, I'm assuming now Detroit will try and move Castellanos back to third base and look for an outfielder via free agency. Also, they now could possibly extend Scherzer.
As for Texas, I think Fielder should hit well in that ballpark and could put up monster numbers over the next 3-4 years. After that, he'll be a disaster. Now Profar gets a clear path to play at second base.