Tonal mapping being performed by the player instead of the panel is an intriguing idea. It seems to be something that would fall in Oppo's wheelhouse but I have a feeling it would require more than just a firmware upgrade to our existing models.
Wanted to share some experience I had last night with the 885ES. As some have already noted, the default HDR performance isn't quite stellar. Acceptable, but better results can be achieved by loading in a new curve via Arve or using something like the Lumagen Pro's Intensity mapping. But some are intimidated by the Arve tools and the Lumagen is pretty expensive. Last night I got the chance to play with the latest (non public) beta firmware for the Oppo UHD players. Oppo has been working on an updated tone mapping capabilities that I find very similar to Lumagen's intensity mapping. In the HDR menu you would select HDR OFF but retain 2020 color. With your projector calibrated to a 2.4 gamma the Oppo would then do the tone map for you. You can select what peak brightness you are going for (similar to the Lumagen) and then Oppo provides four options for how they do the tone map and what each emphasizes (highlights, shadow details, both, upper end preservation). It works REALLY well compared to the projectors HDR and solves a lot of the issues I hear people complain about when it comes to HDR playback on a projector (dimmer image, lack of shadow detail, etc). So those with an Oppo should keep an eye out for this feature. I'm sure it will hit public beta soon and then eventual normal release as well. This HDR mapping and the update they did earlier that gave lots of options for those with scope screen setups have really added a TON of value for their players.