Hmm. This co-operation on content rights is nothing to do with any co-operation on network. Different bits of BT.
I would imagine any co-operation between Openreach and Sky to be along the lines of Sky agreeing to become an anchor tenant.
While it all comes down to money at the end of the day the UK only has so many companies and so much labour and skill to deploy this technology. To carry out their FTTC/P rollout Openreach required immigrant labour. That alongside Virgin Media's Project Lightning delivers yet more demands on contractors. That project may carry on for a while past the original phase. Add to that Vodafone and the TalkTalk + partner rollout should it happen and you've a workload that the UK simply does not have the ability to handle and, in the context of our current environment, we'll struggle to change that.