I wonder if there is an availability checker or whatever that actually works, the ones I have tried just seem completely broken. I'd like something that shows me what the planned developments are. I can't see any point in secrecy, it buys the powers that be some goodwill by relieving long-suffering would-be users' frustration, if they show what is planned well in advance and there's no hiding it as the gossip machine and crowdsourced BTOr surveillance is pervasive and very effective, and aside from that BT guys are quite happy to tell you what is happening according to their internal rumour mill.
Some of the BT guys I have talked to don't understand much about DSL, the Internet and networking, they find it all v confusing, a blur of TLAs and jargon. One guy I talked to a while back, a really nice guy, was definitely in this category. I think he was trying to tell me about planned FTTRN but didn't have all the vocabulary, so I had to use a bit of reading between the lines / guesswork to make it out. They've all just been incredibly helpful, one guy even gave me a free Pressac NTE2000 just to be nice as he just had one in his van.