Saw the headline that he may run for Senate, and I was like, "In what state?" Certainly not in Minnesota, where there are two Democratic incumbents and the next one (Klobuchar) isn't even up until 2024. Also probably not going to run for governor in MN, since there's also a Democratic incumbent who will be running for re-election next year. He could wait until 2026, though by that point he'll be 75.
I'm guessing this was mostly just an attempt to drum up publicity for whatever he's doing right now.