Aw come on Charlie. Isn't the OGR forum all about guessing and rumors.
Here is my rumor for the day. Lionel is dropping the CAB2 all together. They will supply a base only. Everyone will be required to use their iPad, tablet or Smartphone as a controller.
This in the end will save Lionel on Cab2 manufacturing costs, repairs and make upgrades a snap. Those who don't have a smart phone will have to buy the "Rotary Bridge".