Yes, they are still a thing.
Now that you bring this up, an Easter party sounds fun.
Yeah they're still a thing, but there's not really anything for the spring term/season at current. It would be cool to have a thing going where the theme of the spring event alternates each year. Aye, the Summer party and sometimes the Christmas/Winter party usually has something different going on for them each year, but it still holds a title which everyone is expecting, and the theme is going to evolve around either around Summer activity or Christmas/Winter themes. I think it'd be kinda nice to have some sort of rotating theme each year for a spring term/season party. If people wanted Easter tailored to it, then there could be some sort of scavenger hunt somewhere along the party. Maybe a preset contest that isn't related to the Forum's preset contest. Instead of 1st, 2nd and 3rd places, there would be just a 1st place perhaps. It makes things more competitive and maybe there could be some spectacular prize. I'm not sure. But maybe I went a little too overboard with this response to your question.