The Office of the Telecoms Adjudicator published it's report for November and said that the UK had 3.552 million unbundled LLU lines and forecast that there will still be strong demand in the near future for LLU but this to start levelling out a bit in the medium term.
Migrations appear to be one of the biggest issues that is brought up in the report as something that is going to need continued improvement as more customer start to look at swapping deals for better ones between providers.