First for Uhuru to break Jubilee - he has to find a better deal. The deal Raila is dangling we don't know the details - it appears to change the constitution & somehow allow Uhuru to continue as Executive PORK or something close to that. I don't see any other deal that would excite Uhuru.
If UhuRuto were to fall out, Uhuru would face such a huge rebellion esp from RV emigre of Kikuyus. They know from history - when rubber meet the roads - Uhuru's gov won't be there for them.
The big question is who will be running against Ruto in 2022. Raila? MaDVD? Uhuru again? Gideon? I think once you answer that question - then everything else start to make sense.
Robina. Ruto is very easy to finish. It will only take Ouru one or two tours of GEMA to finish Ruto in GEMA. Once GEMA leaves, Ruto everything else will fall off and Ruto will be left with a Jubilee version of URP. Jubilee is done. Ouru does not need Jubilee anymore. This thread should be kept alive until 2022.