Your deffo not getting adsl2 anytime soon. But I can tell you that you are getting FTTC in Portreath at some point very soon.
There don't seem to be many listing on the planning site, but the base for my cabinet was put in last wednesday. I think it will be active around March ish time.
If you do a post code check on the school it gives
Our test also indicates that your line currently supports a fibre technology with an estimated WBC FTTC Broadband where consumers have received downstream line speed between 6.3 to 28.6 Mbps and upstream line speed between 1.4 to 6.6 Mbps.