I generally avoid getting in the middle of discussions around what writers have said and what readers have speculated and/or gleaned from a few quotes here and there. But I feel like people are making some fairly lofty assumptions about the future of Cyclops/Jean.
What the writers say in interviews rarely amounts to much. Nobody in X-Men Monday indicated that they were in favor of breaking Scott/Jean up for good. Most just favored them being apart for a while and developing on their own. I actually support this. We saw just how great Jean could be on her own in X-Men Red. She and Scott don't have to always be around one another to develop. They can do their own thing and still be a couple. In fact, that's what healthy couples are supposed to do. Sure, a few writers stated that they didn't like the pairing, but it's not like they're the ones determining the future of this relationship. JDW has gone on record as saying Scott is very much Jean's endgame and vice versa. They're an iconic love story and for good reason. Recent comics, going back to Phoenix Resurrection and the O5 X-Men, have only affirmed the strength of their love and on-panel, no less. I think that's a pretty good sign that they're not attempting to utterly undo the relationship, One More Day style.
Age of X-Man is certainly a complication, but there's no hint that there's a deeper romance brewing with Bishop, nor is there any sign that it'll become another messy love triangle. Given that this whole relationship had little substance behind it and only emerged due to extensive reality warping doesn't set it up as a meaningful romance that will blossom. At most, it feels more like a fling. Plus, Bishop has not been on much promotional material for House of X and Powers of X. But there has been plenty of artwork showing Scott and Jean working on the same team with one another. While they may not be together, the fact they're around one another usually means they'll be drawn to one another eventually. That's something X-Men Blue nicely demonstrated in its finale. Logan even acknowledged that in Grant Morrison's run.
I know it has been rough for Scott/Jean fans for many years. But even as they were deconstructed in the comics, their relationship has popped up in many other mediums and remains a critical aspect of the overall X-Men mythos. There's no sign that's changing, but there's plenty to indicate that there will be a fresh batch of drama. And honestly, I'm excited about that because that kind of drama brings out the best in both of them.