That seems rather resemblant of my experience; here's my timeline of events:
On the Connecting Devon and Somerset website, my exchange status moved from "Under Evaluation" to "Coming Soon" about 2 years ago having been the former for about a year.
Last summer (August), Openreach started the FTTP deployment with new equipment appearing over time up until about December. At this point the expected completion date on the Connecting Devon and Somerset website was "by January 2016".
January 2016 came and went with no news so I decided to email CDS. They said some issues cropped up and now expect to finish by March.
Again, this came and went with no news apart from the CDS website date changing to Novemeber 2016. So, I emailed and again, they said some new issues came up and Openreach now hope to finish by the end of June. It was at this point they also gave me the "85% completed" figure and said the Novemeber date on the website was a conservative estimate.
So now I guess I just have to wait till the end of June. I assume June will come and go with no news again, but I really hope it doesn't.
I really wouldn't trust the Openreach website as it seems to only work with FTTC and it gives a different result depending on whether I enter my Address or Phone number - For my address it thinks I'm on an exchange only line to the wrong exchange and with my phone number it just says exploring solutions.
I haven't tried to contact the FTTP sales team yet but apparently, about 2 months ago, BT were about asking neighbours if they'd be interested in faster broadband.
Edited by deleted (Fri 27-May-16 19:46:44)