A green pre-production prototype has been acquired by a fan, and it shows two added accessories that didn't make it to the final version - the arm communicator from one of the first episodes of the cartoon... in two sizes, one for robot mode and one for cheetah mode.

Or maybe it's not cancelled, and will be included with a minor redeco later... like what they are doing with MP Optimus Primal (including the original toy accessories). It just wouldn't make as much sense though, if they do a toy-accurate deco (like Primal), and include cartoon accessories.
(then again, TakaraTomy have included accessories to redeco characters that belonged with the original version in the past, and a redeco here would need something new added, as the first MP Cheetor/Cheetus already has both of the "original toy" guns)