I’m sure it will be a very interesting future long distance walk. I'll definitely try walking some of it when it comes into existence.
It seems to be the British Pilgrimage Trust which is promoting this, based on a route shown on the Gough Map
http://www.goughmap.org/map/. I’m fascinated by this mysterious map of the British Isles dating from around 1350. The BPT claims that the ‘Old Way’ is the only non-road shown on the whole map but I can see quite a lot of lines linking places which seem to be marked quite similarly. Maybe I’m just an old a cynic (and I am a paid-up member of the atheist tendency)
but I see an attempt here to take over what is undoubtedly a fascinating historic and prehistoric track and imbue it with some sort of overriding religious or at least ‘spiritual’ significance. As I understand it, that is what happened when a Victorian cartographer claimed the title ‘The Pilgrims Way’ for that ancient trackway that is now officially the North Downs Way.