Hopefully Bloomberg's surprising strength is just another "flavor of the month" phenomenon indicating that voters are still desperately hoping for the miraculous appearance of a candidate they can actually get excited about.
What worries me is the possibility that he's in it as a placeholder for Clinton, to pay for the wet work of crippling her rivals, especially Sanders, so their voters won't blame Clinton.
I think the Buttgag's youth works against him in the sense that voters see him as having plenty of cycles to try again. Unlike Harris and Beto, he's positioned himself as a credible future party leader once the dinosaurs are gone.