OK, grabbed this image from comicbookmovie. D23 has banners up for its event in Anaheim which is to be expected. However, this one shows many familiar faces as well as some that haven’t seen much “air time” in the MCU. The Watcher and a Kirby inspired Celestial.
If Marvel is showing them along with other major players it may be safe to assume they will have significantly more screen time in upcoming films. “IF” that is the case FF48 will of course continue to surge in value and those Eternals books that feature the first appearances of specific Celestials could be seeing some potentially big spikes as well. Really depends on which Celestials Marvel decides to use and how big of a role they will play. Yet to be seen.
Make of it what you will. Still very early.