That's what I'm hoping for Hugo. I think they definitely made it bittersweet, and it definitely is an emotional tug in the story. Hopefully, it all works out for the two of them in the end. I think they want it to be pretty compelling.
But the trilogy isn't over. They'll both be back in LotV anyway. And Chris Metzen said it himself that just because LotV focuses on the Protoss part does NOT mean the whole relationship between Raynor and Kerrigan is now completely ignored.