>they need to drop the history since the origin story and then go from there
Actually; I don't think they CAN, 'cos the 80's put the emphasis on continuity and you'd have to find some way to wean a significant number of your fans off the idea. Not easy to do, since so many of the oldsters seem to dislike anything new and/or different out of hand, and the last decade or so has planted the idea that ANY reboot is temporary firmly into the mind of the reader. You'd need to find some way to distance THAT reboot from all the others....
>I think they need to wipe the slate clean and start over like they did at the start of the Silver age
....or the first Crisis, or the one where Superboy punches reality in the face, or the Flash-themed one, or how everybody was all grins and not killing back in the 50's.... Wiping the slate clean happened a lot back in the day, but our generation had the idea that every little fussy detail mattered drilled into our heads by the 80's secondary comic industry. We're too aware of the behind the scenes bits to let go and let things run their course. Nobody says stuff likie "Ooooh! New Superman! I wonder where this is gonna go." We're all "Oh, that's SSSSOOOOO stupid, what they're doing to Superman, and that story sounds way too contrived, and is just Writer McAsshat purposefully trying to undo everything that Writer McOtherasshat did before him 'cos they hate each other, and Arty McCrosshatch is a horrible artist, and he draws those weird glowing tubes on everything so it all looks like Tron...."
Kids would be able to let things slide, but they got their own comics to read and don't care so much about the superheroes since the post-80's navelgazing of the Big Two-ish requires WAY too much research to get anything from.
Weird bit: Ever notice how Marvel does stories with superheroes dating, whereas DC has every hero come equipped with a significant other who's a normal? I kinda think that's another aspect of the DC characters being older that we were discussing; back in the 40's it was essential that EVERY hero came with a significant other who tagged along, contributed nothing except a potential hostage, and failed to recognize their true love after a change of clothes.
....maybe that's why Clark Kent must own a closet full of identical blue suits....