I reached out to Joost a long time ago asking what the chances were of jazzinc producing a 1/6 BTAS Batmobile. IIRC, he said it could be possible if there was enough interest. This was way before he obtained the WB license. At this point I doubt that it's something he would even consider anymore or at least anytime in the near future especially since hes focusing more on the cinematic versions of the Batmobiles and Starwars vehicles. I also have the Jazzinc 89 batwing along with the jazzinc 1/6 BvS/justice mobile and would instantly PO the BTAS Batmobile in a heartbeat if Jazzinc, or anyone for that matter, were to make one. Seems like the closest we'll get is the BTAS Batmobile from Iron studios which is 1/10 scale I believe.Robin and Alfred would be nice.
I'd like to see a BTAS 1:6 Batmobile but I doubt there's enough demand for Mondo to produce a vehicle of that size.
Perhaps Jazz Inc. could tackle the BTAS vehicles - I'm probably one of the few that has invested in the Batman 89 1:6 Bat Wing and Batmobile 66.