It's been tossed around some, but not much. Most of the time when I see it mentioned it's as a potential new home for the Titans, not for a single hero. I guess the shows aren't popular on CBR?
I never watched the original Teen Titans cartoon (so maybe nothing here applies to it) but my daughter loves GO! and I don't know how easy a translation Jump would be.
Jump City does have a few "notable" citizens I suppose, if we can call a hobo who only says "howdy!" notable, but they'd require a lot of tinkering to make them fit the DCU. And there's some store names that pop up regularly (can't remember what) but they're overly punny and meta (though a few could probably be used if you were so inclined). Not a lot of landmarks other than "T" and "H" shaped buildings in the bay. Not much to work with, really. In practicality it's largely Everycity, USA, offering little more than a name.
But it does have some name recognition and that's worth something in and of itself. I suggested using the name (and only the name) for Cyborg's setting not too long ago, and it's clearly a well-named place for an acrobat like Dick (perhaps *too* well-named?). So....sure? I wouldn't mind if Dick moved to Jump. It'd still basically be a brand new setting so it's just a name. And it'd make Badou happy.