There are no plans, sorry
It's just not very feasible, unfortunately. By allowing to decline a scene then I have to account for it somehow in the story... there's 16 girls (for now) in the game... that's far too much alternate dialogue, not to mention the extra renders to depict the "No".
if had_sex_with_marissa:
"Boy, that sex was great, right?"
else:
"I had to say no to Marissa, she's mean. And ugly."
x494.
And in the end it's all done to reduce the content in the game, because the scene was declined.