I haven't followed the Bichette updates that closely, but I'd be shocked if he comes back this season. I get them keeping their options open, and even as a DH he'd still be a massive upgrade, but it seems more like wishful thinking. Nevermind the fact that he hasn't seen live pitching in weeks (he'd have to go straight from that to playoff pitching), and prior to his injury he would have lost a foot race to Vladdy by a significant margin, so I can't imagine how useful he'd be as a base runner. Might have to just hope the team can win without him, but obviously if he's good enough to DH and not be compromised on the bases, then you have to go for it.