I'll be hanging out until the 2020 release, and i'll look at the 3700 or 4700 version.
While i was hoping for some HDR10+ support for my existing 82 inch Samsung next year, it'll be interesting to see if they offer it, as i though it might have been in the 3600 version, so i'm not sure if it they do decide to offer it.
Still, with the PS5 likely to be out next year, i might make the move and get a better Bigger TV with Dolby Vision with better blacks.
Bower & Wilkins HTM72 Centre, M1 & PV1 Sub
Samsung 2014 75 inch and Samsung 2018 NU8000 82 inch 4K
QED Speaker Cables and HDMI