In politics - interest is only thing constant. If Uhuru see that his interest is best served by Ruto - he will ditch Raila pronto. If I was Raila, I would like Ruto, work on my own political network, and give lip service to Uhuru, because if he flips, then Raila is DOA. He is better off in OKA trying to befriend Musalia and Kalonzo - while pleasing Uhuru/Mt kenya.
Raila has made himself totally dependant on Uhuru - if Uhuru does a handshake with Ruto - he is basically dead.
Uhuru byzantine moves only indicate one thing - he doesn't intend to retire and want to continue playing political role. The only problem Ruto has snatched Mt Kenya beneath him. He is now a king without cattle. Without state machinery intimidating governors - and gov largeses - he would be naked. But every-day he will become more lameduck...as people rebel like they did to Moi. In fact he has few months to make a deal with Ruto...or with Raila.
Whatever he sign with Ruto or Raila will be thrown to dustbin day one in power. He is therefore wasting time. Unless he was to find a fellow Kikiyu - there is no gurantee that Ruto or Raila will not destroy their kenyatta empire - both will be keen to destroy it. Plus Moi.
So for Mois and Kenyattas - everything is turning upside down. They have permanent enemy in Raila (ignore the lovey dovey) - and they have created a new one in Ruto by slicing him. Both Ruto and Raila are very forceful individuals and will not willy nilly share power unless you can hurt them politically.
In conclusion I think Waiguru decision is a good indicator of where uhuru heart is....I hope uhuru is not playing Raila.