By the looks of that epilogue scene, he has plans for Leah, so I think it’s safe to say she’ll find a way.
Although, I also think it makes sense for it to change the circumstances, changing how future Leah turns out.
@NiiChan, just a tip if you have plans like that - go the Witcher 3 route. Use a save to decide which ending was most recently played out, and have a ‘memory refresher’ scene to set the past when a completion save doesn’t exist. I imagine you can use a similar technique to integrate variables from the other game into MBML too.