Meh... haven't handled a mirrorless body yet that I like the ergos of (from any brand), nor do I care for the squared rangefinder look.
I've locked into Canon DSLRs... including a new 90D and I just ordered a 100-400mm IS II tele last night and hope it'll replace my Sigma 150-600 Contemporary and two Canon 70-200s (F/2.8 IS USM and F/4 IS USM) for my daily raptor "expeditions". I mostly care about wildlife photography. If I was more into portraiture and landscapes, then maybe mirrorless would be calling me harder. But I have no interest in using a converter. If I was gonna go mirrorless, then I'd go full native mirrorless.
Nevertheless, now that I'm back in the camera game after a 10 year absence... it is a bummer that DSLRs are on the way out. But they'll be around for a while yet. Not like everyone is going to dump their DSLRs immediately.