I literally think that it's completely fine to do that. I wish I had thought to do that... Eh.
Example: Of all the events that took place in Waltz's route (1st game) -> they just follow up with them in Evermore... (Other routes too/not just his).
There shouldn't be much worry as there isn't a big reminder of what really happened. It's two years into the future and how the characters are getting on and such. :>