I've been thinking a lot about what games in the series I'd like to see. I believe that the return of the Resident Evil 6 storylines will not take long, since Resident Evil Village is the second and final part of the story of Ethan and possibly the syndicate, I would not be surprised that other stories will be told and other storylines taken.
As I said, I like the idea of a game about Rebecca working with Umbrella and getting to know the organization from the inside. The authors can show the company's impact on the pharmaceutical industry and the effects of the C-Virus on the world. Perhaps they could link Umbrella to Vendetta, since the company could provide research and technology for vaccines.
I also like the idea that The Family and Umbrella might have been connected. US politicians are definitely not so clean-handed, so we can better investigate this conspiracy and connection to Wesker.
But I would also like to play a game like Revelations Zero. It could have been a game about Cameron at a time when Umbrella was having a hard time. We could get to know the co-founders of the corporation better, like Henry and Beardsley.
But I also like the idea of such a game in the format of an almanac. Some Resident Evil Stories or something like that.
It could be an episodic game with seasons where there would be different short stories.
For example, the first episode would be about 16th century Spain. The main character would be a nobleman, and we would see one of Salazar's ancestors. This game could show how the navigators brought parasites from Africa. And, I think, the setting itself is very unusual and fresh for the series. Seeing familiar locations without having to do a remake is cool.
The second story could be about how in 1945 a Soviet spy could get into the Krueger family castle (it might even be Neuschwanstein castle, which can be seen in paintings in the Spencer mansion), where he would learn about cloning experiments, as well as how the Nazis discovered β Hetero Nonserotonin. It would also be interesting to learn about the Krueger family connection to the Ashford family. And, of course, this knowledge would help make clones in the future. The spy might have been called Ivan, and Vladimir might have named the tyrants after him.
Authors can come up with a lot of interesting things, actually.