Canterbury GR is the current model, since 2013. SE is the old model, which Jim owned, and which I owned before I bought GR. It does appear now that the move of all Tannoy production over to China (including Legacy and Prestige lines) has been confirmed, sadly. There may still be UK stock on hand filling orders for the time being - hard to say for sure. I bet they’ve dropped the UK stickers for Chinese production.
I’ve been watching Fyne with very much interest, but it’s gonna be tough to make me move from my Tannoys. The fact is that dual 10"/12" drivers or a single 12" is going to sound different than the single massive 15" alnico Tannoy. There will be plusses and minuses to that. There is a scale, intimacy, and life-like image size of the 15" driver that was not replicated in the 10" and 12" Tannoys. On the other hand, asking a 15" woofer to reproduce up to 1.1kHz (and beyond) has its problems too.