"This time of year, microspikes are more helpful than crampons and worth their weight in gold"
In other words, no snow worth mentioning that hasn't already melted and re-frozen into thin glaze ice.
However, things can change very fast in late December.
"moderate snow accumulations will be possible for the interior"
Currently the long-range forecast is for no more than an inch or two (in N Conway -could get a little more on the mountain) on each of the snowiest days next week , but those forecasts can change. If you're really motivated to ski, bring the sticks (a pair that you're willing to scratch up): you will probably manage a few turns in a few places, and you might get lucky and wake up to a nice drift in the lower Bowl. If you're more worried about getting stuck, I'd bring snowshoes to the base of the mountain and chat with the rangers when you get there. (Talk to more than one person - sometimes the staff at the desk has been in the ravines lately and has been keeping an eye on the weather/avvy forecast, sometimes they haven't.)