CFW 3.55 with all keys (4.21/4.25/4.xx/5.xx)

I'm just thinking or maybe dreaming but why not! Do you think is there a way to make a CFW3.55
running with the new keys? and come with a simple way to get the new one after they are leaked?
So things is:

A CFWX.XX (base on the old good 3.55) running with the new keys
A program who can simply update the CFW when the new keys are leaked

For the moment i'm on CFW4.21 1.09 Rogero, i thinking to go
back on 3.55 because to update on newest CFW is boring (QAflag 3.55---QAflag ofw3.55.....etc)

I'm sure you have certainely thinking of this kind of CFWX.XX but
is there a possibility for someone to create it?

A french guy who wake up!