Yes, I'm aware. I had brief contact with Neville last year. It's a glacially-slow process because the business isn't his day job.
It's even slower with the Backwoods OO9 loco kits, as there's no visible progress. I did ask if I could buy a copy of the instructions for the Ffestiniog Double Fairlie (I have the kit already), but Neville wasn't willing to do even that, so I'm stuck.
I reckon we'll be lucky if any more Backwoods kits of any description return within the next five to ten years, but I don't think we should expect too much.