If they don't offer half a billion dollars to Gunnar there will be pitchforks. Soto was offered a very nice deal for 440M a couple of years ago and they said no thanks.
I think Norby is a guy they've tried to move and probably hasn't garnered a lot of traction as a real piece. He's still young, and you're right, he's always hit but the glove is probably making him a much less attractive option in trade value.