New game modes with every holiday!

So right, i looked at graveyard gamemode, dead, but at first place everybody was playing it.

Shadows? Same history. This is were my idea came from.

What about adding new gamemode every holiday or just some kind of small thing will remind that 'today is that day'. It would be nice and keeping game fresh.

Some examples:

New year - fireworks, droping them into fire would result in colorfull blast :).

Aplir Fools - Not sure here, but just change something, like no drop from boxes, you know every box is fake.