On side you are correct, but knowing Ruto very well. I believe he will elevate Hassan even though he is not a political heavy weight just to reward him for his stand from start with him , Mvurya for sure will get something but not CS, Maybe Aisha or Hassan.
The bet as you said is Coast in 2027, I am sure Ruto will crack that just give land to the digo squatters, please some arabs.
What about Sonko-Ali Mbogo? I think Ruto signed a MOU with SOnko to give Ali Mbogo the CS - so Hassan Sarai has drunk water. In Kwale - Mvurya likely to get CS and so will Kilifi Aisha Jumwa.
Ruto is very keen on coast - because he wants to take Arabs and Kenyatta land - give half to Mijikenda and keep half for investors.
I expect Ruto to focus his attention on Three Major areas - Coast (Land/minerals) - RV (Maa - land, Turkana oil) - and Nairobi metro- those are areas where there is real wealth/opportunities going forward.
Balala is Mr.Fliflop, the new king of Mombasa is Hassan Saraj . Bala should be history in Kenyan politics.