When the manga finishes there will be gloating from fans of the pairing which happened.
Then the forums will go nuts and I gurantee there will be some Kishimoto bashing.
I can actually see the war continuing a year after the manga ends, then we may get Pairing peace.
Hell yeah, I'm gonna gloat when (if, lol) it ends up NaruSaku. I'll probably do it here, or at my LJ, basically somewhere where it won't seem as if I'm rubbing it in to other shippers.
As for the forums going crazy, yep. I remember in Harry Potter when the Harry/Hermione ship sunk. I can see the fandom going absolutely nuts and everything ending up on fandom wank. Although I don't think Kishimoto will exacerbate the problem by calling NaruHina shippers "delusional" even though a catty part of me wants him to have an interview where he talks about "anvil sized clues" and how could anyone who has read the series have thought differently.

There won't be paring wars though, it'll just be truckloads of Kishimoto hate and fan entitlement, and how he's a horrible mangaka who lead his true fans on.
But I'll stop, cause this is probably getting out of line.
On topic though, I love the Manifesto. It actually made me go from, well I like NaruSaku better than most, to, this is my OTP. Hehe.