you need to wait for g.fast is the bad news.
BT wont reroute a line most of the time just to satisfy a customer's wants, but if the marketing department wants it done so higher speeds can be marketed then the money appears.
So basically its unlikely a reroute will be done (but not impossible as has been proven) but more likely the node will be moved nearer to you via g.fast.
To give you an idea how tight BT are my engineer told me he has been told to avoid doing work where the cost can be measured in double figures only, he has told me some stories, one is where he could have doubled someone's speed with a 30-60 minute job But was told if the line is within spec dont do it, in spec meaning within acceptable ranges of estimated speed and FTR, note if a line is below both those figures BT will often still consider it within spec, it usually has to be significantly below or fail a GEA/SIN test. Some area managers wont approve jobs until its raised to complaints. All to keep costs down, save those pennies. When aware of these stories, its not hard to see why BT is regulated, as they are happy to do the absolute minimum.