Winter cuts are due to the difficulty in filling 189 seats in the winter. FR focus more on the leisure market where demand is lower in the off peak winter months. It is pointless to fly these aircraft around at more of a loss than needs, as this will reduce the company's ability to post increased profits (generated in the Summer period). Less profit, reduced shareprice etc.
The business is being assessed at the moment. As a company it is not known yet what cuts are being put out there this winter, however Euro based cabin crew are steadily being shifted onto 9 months on 3 months off contracts....which tends to suggest deep cuts again.
The launch of bases like BCN, WRO and BUD and growth in MAD etc will help to balance out cuts (not such seasonal bases compared to AGP, ALC, PMI etc).
I am a big believer that a major increase in the amount of Ski destinations would be beneficial for the JAN-MAR period, with destinations such as SZG being focussed on (in a similar way to EZY having a mass amount of flights to GVA and LYS).