If you read Quinns actual words, as opposed to the Sindo spin, he is talking about a follow-on agreement, possibly introduced before the old one expires. But with the endless negotiations to begin right now, well soon, or soon-ish at least. It would be childsplay for experienced union negotiators to chew down the clock until 2014.
The main point here from the Labour perspective is to extend the protection beyond the 2014 threshold with a successor agreement. If Labour enter the next GE with this special-interest constituency further shielded from the down-turn until say 2018, they will be richly rewarded at the polls.
In terms of everything being on the table, isnt that always the case going into these negotiations, but so rarely still the case as they draw to a close.
But in the particular case of increments, I would expect union opposition to a limited suspension begin to soften as more and more influential members hit the tops of their scales.