I agree with what you say in regards to umbrella corps but ı'm still surprised that capcom follows the game's story points despite the game being criticised by practically everyone to the point of being the worst one in terms of reception from all re games.
That makes me believe that ı dont think a game having a very bad reception alone means it will be forgotten completely. Heavenly island, re7 and revillage all follow from the game's story, even if umbrella revival is in background compared to their other story points.
Despite being the black sheep of main numbered entries; re6 received better than umbrella corps but unlike that game, ı dont feel like its story will ever be followed up upon.
To me, there are couple factors for this. The most important being that it got an underwhelming reception compared to previous and later main numbered entries and it didnt sell as much as re5 and it still cant beat its sale numbers. ( Some people downplay its sales even more to the point of calling the game failure or saying that re4, re7 and re2 2019 beat its sales. )
I personally dont care much for sales and reviews since ı would like to form my thoughts by myself as much as ı can but more factors are suga, who wrote re6 as well as 1st 2 cgi films and darkside chronicles, passed away. Unlike sugimura's case, where the plot points he created were followed up well with suga's case after his death, ı dont feel like they will do the same again for the latter. The last reason being that re6 was a big ambitious project whose director was sasaki who directed outbreak games and it missed the sale target back in 2012. Due to outbreak games not receiving well at their time either, ı think this is another reason why re6 will be forgotten just like those games and at best, it will quickly be referenced and get glossed over fast.
So to sum this up;
1. Worst reception from all main numbered entries
2. Not selling as much as re5
3. Suga passing away
4. The game being a very big, expensive and dedicated ambitious project
5. Missing the sale target
6. Sasaki being the director whose previous 2 games he directed werent received well
These factors together, sadly as much as ı dont like to say it, pretty much doom the game's fate.
I think ı said this before but ı wanted to say it again cause it came into my mind.
In regards to umbrella corps, what ı dislike more about it is not the gameplay but the story. I dont like umbrella revival plot at all and ı dislike wesker revival hints even more. Considering how pretty much anything in this franchise is possible as well as the fact that dmc5's story was designed around in a way to bring back vergil, ı guess they might do the same things for wesker too.
I didnt want to mention these again, it's getting really repetitive saying the same things over and over but at this point, ı'm more curious for dmc rather than resident evil really.