I'm not 100% sure but I think the sophie and dylan event will only take place if sophie decides not to hook dylan up with emma (that scene happens at school during aiden's second assignment).Yes it is a possibility, since last time the jacuzzi was not working now there is a possiblity for that to happen (even if a scene in it is already happened with Liam).
Correct me if I'm wrong, but the dylan/sophia event will be only visible if dylan is not at the boarding school, can you confirm that? in the next PD Dylan is coming back from the boarding school (https://f95zone.to/threads/a-wife-and-mother-v0-115-lust-passion.5944/post-5196619) so I guess dylan/sophia and dylan/emma are only happening of he's not at the boarding school.
Also concerning the content, there is another factor to take into account. Dylan could be home schooled by Sophia if she refuses the 2nd task. So I guess there could be a slight variation of the event at least in terms of dialogues in that case. In the other it could be Sophia tutoring Dylan.
Or, the event could be split. If Dylan is homeschooled "nothing" will happen, there will be a short scene where Sophia teach him. Otherwise (Aiden's path) the event can start as a tutoring thing and maybe deviate to a massage or something like that.
(obviously it could be the other way around, idk which way make more sense story-wise since the twist is out of the picture)
In the next PD there will be a Nathalie event. One possibility will be that again Sophia spies on her, maybe while she finds the dildo in Ellies room.
Or there could also be a switch between them: this time Nathalie spies on Sophia (in the shower, in the bedroom while changing...) and Sophia notices it and have the choice to sent her away or tease her giving her a show (without acknowledging her presence) like she did with Sam.
So if you send Dylan to boarding school I guess it won't be possible to see that event.