Honestly, with Hickman's run, I'm hoping Scott, Jean, and Emma are all single for a good while. I'd imagine something like Scott wanting to be with Jean, but she turns him down, wanting some time to herself. Meanwhile, Emma tries to get back together with Scott, but he turns her down, realizing they just don't work anymore. Then they all can all do their own thing. Eventually, Scott and Jean would reunite, and Emma would find someone who doesn't make her feel like second place (to Jean or an endangered mutantkind).