SRT is a small division of Chrysler, and they can only do so much at one time.
They have released 3 Versions initially, and will be doing development on additional releases depending on the successes of these first 3.
They will most likely have interest building for a Vert, and release it in a couple years. Then follow up with a track oriented ACR and then start the whole cycle over again.
Each release will incorporate the latest developments with newer software, electronics, throttle controls, additional HP and torque, newer tires, fresher wheel choices, transmission options, and of course special editions along the way.
These portend to be exciting days for the ViperNation, as SRT ramps up to full speed and production.
Along the way SRT will gain experience and insite as to what will please it's customers. They seem very open to fresh ideas, and almost are offering a bespoke number of choices to the marketplace.
Previous generation saw the development of the Vert, Coupe, ACR, ACR-X, CompCoupe, Prefix, and several Mamba, VOI, First/Final and other special editions.