I just don't see the attraction for Samsung to even consider Jolla or Nokia. They're doing just fine with Android, really. If anything, people want a stock Android experience, so there's less and less reason for them to veer. Instead, they're far more likely to provide better and better hardware to run Android on top of, or more differentiating cloud and other services--nothing OS related.

Right now, Nokia (and even Jolla, by Maemo extension) is the ugly girl/guy at the dance and has to really WORK to get someone to choose her/him. Right now, with Elop in charge, Nokia is clearly not even trying. It's up to Jolla to prove themselves first before Samsung goes to dance with them... and they've ALREADY got a successful partner at this dance.

Good luck!