I'm going to be one of the pessimists and say Namori will never confirm a couple until the $$$ stops flowing, and even then we might get a rushed or non-ending ending.
Guys in the first page, please, don't be pessimist, never say never. Namori has written relationships before in one-shots, she can easily conclude the series with Akari and China together, maybe not as good as this, but it's possible.
There is also one more after story from this author, but that's all.
I thought that too for a while, but I also bought the anthology, so after After Story 3, there's still 5 chapters in the "KonaKaga After Story" collection. (These are also being scanlated atm)