I've actually been strongly considering the possibility of drawing up the rule set for an "unofficial" Shadowrun 6th Ed. The plan is to roll back to the 4th ed rules, modify them a bit to iron out the kinks that existed in that system, and add new stuff. I'm as mad about TMs getting nerfed as I am about Drakes.
Once it's done and polished, then I'll drop it in Catalyst's lap. Since they appear by most accounts to be too preoccupied nursing their Battletech baby to give SR much love, if any.