Nope, the last party is held about a week before Christmas. You would still see the parade, though - and you'd see it during the day, which is a much better time to see it! I think they do Christmas fireworks at the MK, but am not sure. Epcot does their Christmas tag. I know that.
Other than the parade and fireworks, there isn't much reason to bother with MVMCP.
Do be aware that Christmas is THE BUSIEST time of the year and that the waits for EVERYTHING are long. You will wait for attractions, bathrooms, water - everything. And you'll wait a loooong, long time. You even have to wait to walk because there are just so many people. It's insane.
I waited over an hour just to get into the MK parking lot on the afternoon of Christmas Day. I'd put off riding the Jingle Cruise until Christmas Day because I thought it would be a fun treat, but we didn't even ride that because two hours was just unreasonably long.
Busy, busy, crammed, crowded, packed and super long waits for everything!!!
Nt trying to deter you, just letting you know what you're in for. I'd hate for anyone to spend a lot of money and be unprepared for how ridiculously crammed the parks are at Christmas, that's all.