unfortunately zero chance may not be the case. if it was, the option would never have made it to the shortlist
I guess I'm just more of a cynic than you are.
IMHO the split-runway proposal is there purely as a makeweight - it's never been done before, the safety case is unproven and it has no support from the airport and ANSP that are somehow expected to implement and operate it.
remember there is no one with aviation experience on the commission
Yes, it's ironic that the only member who had, Geoff Muirhead, was forced to resign from the Commission because of his connection with MAG/Stansted, which then ended up not making the shortlist anyway.