I sort of wonder if this movie will at all acknowledge or reference that Chewbacca once stood next to Yoda during a Jedi Council meeting the day of the Jedi Purge, and then howled sentimentally as Yoda gave him a somber goodbye and blasted off into the night sky.
I think they’re trying to play safe. There has been a few references in the ST (enough to make PT fans happy), plus stories set in the PT years, but I don’t think they’re gonna reference a few scenes from RotS that have been criticised a lot among fans.