Reading around, I find very instructive Chris Reynolds takes on the problem of most of the heat excess being vented out during refreezing, see for instanve, http://dosbat.blogspot.com.es/2011/07/arctic-sea-ice-free-this-decade.html?m=1
with special reference to Tietsche et al 2011 simulations http://onlinelibrary.wiley.com/doi/10.1029/2010GL045698/full
in a number of posts.
Seems to me what we are witnessing is a fast refreeze for three reasons: cold weather from north; lots of marginal zones with ice and colder water that are first to refreeze; and, a litlle of initial fast propagation due to wrinkled ice edge, which increases the initial interface lenght of ice->water prone to quicker refreezing. Add plenty of divergent drift within the pack.
My first assumption is that this fast refreeze does not lock up any trapped heat. It just means areas where heat in mixed layer was lower to start with will refreeze sooner. Nothing to trap beneath it. Then, warmer areas will take longer to refreeze, and then will eventually do when they reach freezing temperatures. Nothing special thermodynamically.
Can some heat be trapped for next season? Maybe. For instance a later pulse of warmer Bering inflow water would lose more heat if it remains in open water than if it forms a pool beneath already frozen area. Likewise there is this complicated mechanism of a layer of fresher ice sealing saltier water beneath. Many other complicated things out there.
But overall I will assume them not significant for next season unless I am pointed to a good scientific resource indicating otherwise.
No seeding of refreezing with sort of a catalystic process. Which is the agent that catalizes the freezing may I ask?
Early snow cover may play a factor on limiting heat losses, but simple 1D heat equation shows that 10 or 20 cm of snow layer has a limited temporal effect (a week) on isolating ice from outside plummeting temperatures. 50 cm is another story, but you don't get that until Spring, and by then it becomes really ice-protective.
I can be wrong that nobody here pointed to scientific work, indicating massive heat can be trapped to really affect next season because of fast refreeze (except, as I said, maybe to reduce heat loss from incoming ocean currents; but for that, peripheral seas must be sealed with ice and that may still take quite some time).
What I find very worrying for next season is the low volume, low MYI survived, and the shape of the pack cannot be worse, if massive Fram export during Winter and early melting in Pacific side happen next year.