If they're going to bother shoehorning Carol into the new universe, I want her to end up in a healthy relationship with Kirk. It wouldn't surprise me if the next movie picks up 5 years later and Kirk has a 4 year old kid with her too.
I don't think that Bones is ready for another relationship after his divorce. Since he had to leave Earth afterwards and joined Starfleet, the divorce probably put him off of relationships for a while.
IF they can write it well then this would be good. Kirk has abandonment issues. I think Carol could be a good psychological foil for dealing with those. But I have no hope in Orci/Kurtzman being able to write intelligently about deeper emotional issues.