The reason why cPanel block WordPress updates it's because they cannot dedicate resources to support third party apps. They are already very busy attending to customer support about internal bugs and fixing things asap. In fact, they have an awesome support team.

cpAddons is a feature that they could be probably planning to drop, since the UI itself haven't been upgraded since ages, and it dont uses the new look and feel and UI changes that their WHM panel does. I can then argue that could a possible future for this feature. Hopefully.