I'm pretty sure I've said the same here myself. It's unfortunate if they were to get together in that scenario. The haters will point out that's just one more nice thing Jean can't have because of Scott.
Of course there is. That's the only effective way to deal with any of the broken relationships in Scott's life, including Jean. You are correct that Marvel seems disinclined. What I can't figure out is why. White seems to think that relationship drama sells books, and of course he's right. That's exactly what X-Factor was. Between Jean's return, Scott's marriage and the O5 dealing with Jean's lack of knowledge of it, not to mention Inferno and Jean dealing with her PF memories, the whole damn book was relationship drama.
More and more I'm accepting it but I'm not warming up to it. There's no good reason for him to be gone an extended period of time (or at all really). The only positive I take from this is that it means Marvel acknowledges how great his influence on the books is and doesn't want to bring him back smaller than he was since they already have Tyke for that.
As for Jean and Emma, Jean's already curbstomped Emma twice now. A third time would just seem gratuitous. It's ancient history now. For Jean to take out her feelings on Emma would seem petty. Frankly Jean doesn't seem too broken up that Scott's dead based on what's happening in Red. If she's grieving, it's entirely done off panel. I think Taylor is basically pretending that Scott never existed. I find it telling of how Marvel percieves the whole situation, that Emma was so much more fundamentally effected by Scott's death than Jean appears to be.
It wasn't the issues with Scott that kept Jean and Emma from being close. It's that they have fundamentally different worldviews. Them both loving Scott doesn't close that gap in my mind. There's was a partnership based on mutual interest during Morrison's run. What Emma's getting up to with Mothervine is the perfect example of why her and Jean would never be friendship material. Even if she ends up double-crossing Ms Sinister and Bastion, it's a far too dangerous game for Jean's taste with collateral damage already.