No details have been confirmed of the anticipated God Of War 1 and 2 combo in the UK but the collection will be included in to the God Of War: Ultimate Trilogy Edition.
A Sony rep told a source their plans for the GOW: Collection for UK territories:
There are plans to release the GOW Collection separately but nothing has been confirmed outside of the Ultimate Edition for the time being.
Sony also confirmed it could only speak for the UK in terms of the Collection being sold outside the Ultimate Trilogy Edition. Details of what the UTE contains can be found here, but the special edition comes with an ungodly price of £110.
SCEE recently aimed to release God Of War III in the UK on March 19, but confirmed to multiple sources it was only a tracking date.