In late 2017 McLaren publicly announced it is working on Project 15, which will be a very track focused lightweight car of similar pedigree to the P1 without the battery pack.
Chris is the Chassis Control Unit module owner for this project. The system differs to 720S by virtue of having adjustable ride height control and hydraulic springs (like P1). Details are very sparse about the car at this point in time but with the existing suspension control improvements mapping across from 720S, the car is tipped to be one of the fastest on every race track, especially the bumpy ones. McLaren has so far beaten every Ferrari and Lamborghini in terms of chassis dynamics.