I'll bow to your greater knowledge here mate, but, 4 years in and despite 'conversations' there isn't anything tangible happening with it.
It surely needs a 'spark' to act as the catalyst for the start of the project? Someone needs to commit in order for that to happen.
The fact that Peel said the other day that there was nothing they could say on the issue, and not, that it's simply not going to happen as it doesn't fit with their entire project, says to me that they've far from closed the door on it.
We'll see how it pans out, but for me it's gone from being a fanciful pipedream to a possibility now.