21CN / WBC Rollout?

[#1]

I'm sick of having rather slow BB...
Our exchange is
http://www.samknows.com/broadband/exchange/SLSAS
It's a Market 1 exchange.

It did have a 21cn date, but thats gone into the ether.
Any further from PN as to the dates/times?
Also, to "push the matter" would it make any difference (Bearing in mind PN are part of BT) if I could get a lot of customers in the area to swap/migrate? If so, how many make it economical?

[#2]

Unfortunately it's not on the BT database either but it's worth keeping an eye on as mine has moved steadily from Sept 2011 to Jan 2011.

[#3]

with that number of people
594 residential premises
14 non-residential premises.
you might be lucky with the 2015 date published today  http://www.bbc.co.uk/news/technology-11922424