Patreon scenes don't go in the hints, they aren't part of the story just bits of silly fun.
I believe multiple endings are planned but only those that make sense.
Maria already has a family, MC is just a bit of fun she isn't looking for anything long term.
Mayan i'm not sure about.
Amy has a planned pregnancy path but has also said she won't leave her husband.
Dani is a possibility for an ending as is Jenna the only one i'm unsure about is Sophie with the whole incest thing and her being a career woman so not sure if she's just having fun or wants more.
Obviously Alex and Daisy aren't end game options, Alex is just having fun and Daisy wants someone her own age and just wants to learn from MC.
Hikari is a lesbian by the looks of it and the rest are side girls or Patreon additions that aren't leading to anything.
So only real possible endings i'm almost sure of are Dani and Jenna with Amy, Sophie and Mayan being possibilities although Amy is slim chance and Sophie i'm not sure about at all.
P.S. Jenna is just me wishful thinking. I don't know if Domiek is planning an ending for her I just really, really hope so with her being my fave.