I wonder if we'll see this generation of specs hang around for a little while longer, given manufacturers haven't been able to get a return on their investment this year. We might see an up-ending of the launch Feb/Supply mid-year cycle.
To be honest, there hasn't really been much innovation in consumer space TVs for the last couple of generations. While cool stuff is always happening in the R & D space, mass market panel tech is pretty stagnant at the mo, so I can see 2021 TVs being just another model number update, with maybe a few more jumping on the HDMI 2.1 (and what a clusterf*** the implementation has been thus far) and 8K (a solution for a problem that doesn't exist, 'cept maybe if your wallet is weighing you down) bandwagons.
OLED panels have been more iterative improvements around pixel wear and picture processing stuff like BFI. While some manufacturers have been playing around with different LCD backlight designs (miniLED, dualLED), nothing has really taken flight since the money is increasingly in self-emissive designs.
With both LG Display and Samsung Display dropping LCD panel lines in favor of OLED and QD-OLED respectively, we should see more extensive OLED ranges from more manufacturers starting to appear in the next couple of years. And then with other manufacturers like JOLED and CSOT ramping up mass production with their inkjet printed RGB panels over the next 3 years, there should be more competition hopefully.