Team options generally come with a buyout price, so while a fresh option rather than extension sounds odd, perhaps the right balance between risk to the player and risk to the team could be worked out along those lines. A next buyout would need to be larger than the present paltry one of $300K, but maybe not 10X that. At this age there are fewer precedents to go by (not that I've researched it). A player in his spot may consider it best to ask "give me money this coming year (i.e. exercise my option), and a little guarantee for next (let's agree on a new option)", when multi-year full-guarantees are no longer being offered to him because of age and career-ending injury risk. Conversely, the team says, "we'll guarantee you $2M now, in effect bumping your 2020 salary to 2019's, if you agree to play for $10M in 2021 at our option," giving them some cost certainty. Maybe this is a sweet spot for both, or something close - or maybe I'm nuts, and they go some different route. Separately, it's entirely possible that with his current wrist tendon problem, he hangs it up after this season.