Google this page is not a duplicate
Fibre Optic Broadband
Can I upgrade my broadband to Fibre Optic Broadband?
BT has been working on replacing their lines over the past 6 years.
If it is likely to prove profitable for them to upgrade your local cabinet during the roll out then you will be able to upgrade.
However, if it's not planned then you may have to wait a long time so you may have to go for
"The better the devil you know option" Cable broadband with VirginMedia (previously, Blue Yonder, NTL, Cable London etc.)
To check enter your postcode at this wbesite ==> CLICK HERE
If there are no plans register your interest with BT and keep pestering them, or start a Facebook or Social Website conversation and they may take notice
GOOD LUCK! IP