Here's some unoticed details that I've come across. You may of seen them before, but I took a careful look and I've found some strange things as well. At the town, there is a noticeboard in the corner however it is not used and the papers are blank.
At the Ski Village, a sled is sitting there, steps have been added to the ski hill and a conveyer belt has been added, with a belt.
At the Snow forts, the forts have been built thicker, and a log appears to be in the corner.
At the Plaza, if you mouse over the Puffle Launch cannon which is now pointing out of the window, you will see a red puffle with a helmet on. Double doors have also been added to the shop.
...There's loads more details to be found on this strange snow covered island...