My own cabinet has now flipped back to a waiting list again, and is still showing on Roadworks.org as a new cabinet being installed next week.
I checked on another local cabinet today, which is scheduled to have a new cabinet installed this week, and today what looks like a Huawei 288 /384HD FTTC cabinet has been stood alongside the original ECI cab. It was dark and raining, and I was driving so couldn't get a photo, but it's much larger than the existing ECI cab, and looks like the one in John's photo above as far as I can tell/remember. There's also another scheduled towards the end of January.