In a report from Motoring, Mazda has apparently greenlit the next -generation rotary powered coupe -- the RX-9. This shouldn’t be too big a shock, considering Mazda's RX-Vision concept debuted at last year's Tokyo motor show with rotary power. Motoring assumes the RX-9 prototype will be ready for the 2017 Tokyo motor show, with an actual production version making an appearance in 2019. Judging by that timeline, you’ll likely see the new Mazda coupes hitting dealers sometime in 2020. We imagine…