I personally think they've abandoned the cabinet (I'm also connected to 8/SLRN). They've claimed to have been working on it since the start of 2012, however I've seen absolutely no progress for the past year and a half, when the fibre cabinet was installed. I contacted Openreach's enquiry email last october (I believe), to which I received a response stating "Expected completion date at the moment is 24/04/2015".
You'll be lucky if they have it done by next March.
Then again, I'm not even going to benefit from it a great deal (estimates of ~15-25mbps).
Edited by thebigdolphin1 (Sat 15-Aug-15 21:52:13)