BTO are running two phases of a pilot for "FTTP on Demand". Additional exchanges are being added in Jan 2013 as part of phase 1. Phase 2 introduces an ordering process in March.
The "FTTP on Demand" service will deliver FTTP to premises in areas where FTTC is currently available. It doesn't appear to rely on FTTC cabinets as the FTTP is taken back to an aggregation point that is not in the FTTC cab.
<a href="http://www.openreach.co.uk/orpg/home/updates/briefings/super-fastfibreaccessbriefings/super-fastfibreaccessbriefingsarticles/nga03112.do/">Openreach Briefing Note</a>
Will PlusNet be taking part in the pilot with a view to launching a service later in 2013?