I've mentioned this in another thread, but I wouldn't rule out that one of the civs has a different great work to collect for the cultural legacy path. However, my bet for this is on France that can build Great Artist and gets a free Great Work with each completion of their unique district and wonder.Though I think the hopes for a Russia unique great people, with writings or music, is dashed thanks to the victory only requiring artifacts. At least I don't think they would count those as artifacts.
I'm a bit torn on the lack of great music, painting, sculpture and music. One the one hand, I think a game called civilization needs to have these. Those are the cornerstones of civilization, some of the highest achievements of humankind. Not having these reduces the strive for immortality that civ is about by a few dimensions. On the other hand, I hate reducing great books and poems to a quote, the small-scale paintings look ugly and couldn't be further from the effect of the real ones, the sculptures looked... special, while the excerpts for the great works of music were on ear-cancer level. So, I'm happy that they aren't coming back in that form. Hoping that there will be a better implementation when they come back in the culture expansion in 2027.