You can decorate your personal space in Trove however you like; if you want pumpkins and spiders crawling about year-round, that’s your business. But the Hub is getting those decorations now because it’s almost Halloween (well, Shadow’s Eve in-game) and that’s just what you do. But that’s the least of the changes with the most recent patch for the game, which also introduces the player marketplace that allows you to sell your stuff from anywhere.
The Knockback stat has been replaced by the Critical Hit stat, while the Critical Damage stat has been added; the former is your chance for a critical hit, while the latter is your multiplier. There are also new adventures and crafted items to be found for a limited time to go along with the holiday. Check out the patch notes for the full list of changes.