Dumo's been declining heavily for years, I don't really give a shit about overly convoluted analytics or what they have to say about his game recently. He's a far cry from the dude who won back to backs. Injuries completely derailed his game and have had a serious impact on his confidence, decision-making and athletic ability.
I still default to thinking he's re-signed. Hope I'm wrong, but it feels like a situation where a FO would just shrug, hand him a retirement deal based on legacy and it being the easy thing to do, and that's that.