Some dungeons are challenging if you’re completely new in the game. Everything gets easy once you’ve figured things out. Nothing really is a challenge in this game except managing my inventory due to new changes. If they’d release a new dungeon, it’ll be challenging when trying it the first time, but people will soon figure a cheesy way. Al Merayah castle for example.

Seasonal events would be great, I just don’t have a clue what the rewards are gonna be.
I don’t see Funcom giving out balloon hearts and pink things during Valentine’s or Christmas hats during Christmas.