I'm in the same scenario right now. Previously connected to PCP2 with a line length of just under 2000m according to my attenuation (26.9dB).
BT have since install a new AIO cabinet in the village (PCP7) which is activated and live, but not accepting orders yet. I've been told that they are in the process of performing a live to live migration, whereby they move active FTTC lines like my own, from PCP2 to PCP7. However, they can't do this until they have agreed the process with all the providers.
For reasons known only to Openreach, this process appears to take longer than building and connecting the cabinet itself. Our cabinet has been live for a month now, with no signs of being moved anytime soon. BT's internal systems show my line as connected to Cabinet 7, we're just waiting for the FTTC service to come across.
The process is officially only supposed to take two weeks apparently. However, speaking to my local BDUK rep, the last lot of cabinets they had go through the process took a lot longer. My cabinet is looking to be a similar story.