It's in the press somewhere that the KA branding will only be kept for 6 more years (2012) therefore I assume that the two companys will have to be merged prior to this.
It could be mean that it will take 6 years for CX to repaint the entire KA fleet.
The last KA A/C (probably freshly painted yesterday in KA colours) won't, as you'd expect see the hangar for it's next D check for guess what 5-6 years.