The only question is when does it happen and who will lose out because of it.
The really important question is what would have happened if there wasn't a coordinated effort to help the "correct" fork?
The longer one would have won.
No. A majority of miners
cannot effect a change in protocol rules.
A hard fork like this would require the
intentional support of a majority of merchants.
Short of an emergency, that means everyone will be given at least 2 years to upgrade.