Tina Weymouth and the dudes from Blondie, U2 and Blur as a start. Adam Clayton especially is a big current user (didn't someone post a link to an interview/his blog or something recently where he was singing it's praises? ... ah here we go:
http://u2-stage-and-studio.com/adam/id18.html), though he's mostly irrelevant now (and also switches up a lot - his roster also includes an RD, Rivoli, multiple TBirds, LP Sig, numerous Ps and even a Warwick sig model which looks like exactly the sort of blingy overstated waste of wood that you'd expect as a sig model for a super-successful earlier in life but now middle-aged bassist whose frontman begrudgingly admits to missing out on the (post-)punk thing... actually more so).
I get what you're saying but they do have a huge cult following besides Rob and Myself (evidence includes steady upward price trajectory, especially for the pups, on ebay). Add in the general appeal of the regular Les Paul (6 banger or 4, take yer pick - you gotta know that the popularity of the 6 banger really helped the sales of the HiZ 4 bangers, which now enjoy a solid rep of their own) and there's enough potential interest to make a business case.
That all said I agree it's not bloody likely (which I forgot to mention earlier, in my excitement to post gear porn). ... but that's never stopped us from discussing our hopes and dreams before; hell, maybe the Gibson R&D team lurks the boards, your sig seems to hope so too. Gibson has learned to be cautious and test the waters for new models lately.