Spoiler ..
Nope. That wouldn't happen. She'll meet Marquise just like the past cause she met him because she dropped her handkerchief on her debut and Marquis picked it up and fell for her and all.. so as long as she's going to have a debut and he comes to the ball they'll meet.
I've read the novel so they are actually meeting
(●￣(ｴ)￣●)
The side effects is that she'd sleep like a log for like a day. Oscar will but nothing will happen
Yea. Cause his sister is a control freak (it's not written in the novel but i think she is), so she'll stop him to approach Aria. ┑(￣Д ￣)┍
Stop him from approaching Aria (OMG I can't believe my English is dying )
Theory: Sarah is not going to meet the marquis. She’s been busy making the handkerchief for Aria and didn’t make one for him, + she wants to become a teacher now. So I think that now the present is too different for her to follow the same path Aria followed