I know this is over half a year late, but...
Hell yes! I will take at least one of any design(s) that are made. My best mate had the Bluebirds Are Blue shirt and Whisper Firing Line one back in the day. I'm sure he still has them somewhere but I doubt they'll be in a wearable state...
As for designs, why not save the run until you reform (please!) and release a new album (pretty please!!) and tour in support of it (ugly big bastard motherfucker please!!!)? Then you wouldn't have to use any old design, just use the new album cover instead!
Seriously though, I think the classic designs would still look pretty cool today, but maybe also a slightly tongue-in-cheek design nodding towards Cable's current status would be good. I dunno, something like "Cable: The best band you've never heard of" or "Cable: Less likely to reform than The Jimi Hendrix Experience" or "Cable, Nirvana, Queen: More popular dead than alive". I don't know, I'm sure if someone with a sense of humour had a go, they could come up with something far better & wittier than those but you get the idea...
By the way, I have some (really) old Kerrang! magazines, some of which have Cable features in them. I must get around to scanning them, if they can be posted here without me being sued by emap. Anyone interested in seeing them?