Yeah, you'd much rather keep Suzuki than Happ (I love Seiya), but as you say Suzuki isn't going to accept the QO. And if he does in fact command a nine-figure contract over 5+ years, I don't think that is a wise move to make.
I'm not convinced Happ will take the QO given the state of thew market, but he's definitely more likely. But as much as I have appreciated him, I hope he doesn't. I'd be pretty irritated Jed offered him any kind of multi-year deal, tbh. His extreme streakiness is frustrating, and with another similarly hot/cold everyday player in the lineup, I think he should be let go.
But otoh, as bad as the offseason market is, I think replacing either or both of them in any meaningful way would end up being trade and/or Alcantara.