I'd be very happy if the Halloween event returned. But considering what the developers did to make a cash grab, I suspect it's only nemobucket. If you're desperately looking for money, create passes like in Sea of Thieves. Every three months, a new season pass is released, with level 100 (90 of which are free, access to the remaining 10 requires payment in currency). Ppp0ppp0Interestingly, they refund 90% of the pass price in virtual currency.
The pass includes a full list of skins, and everything is clear. Furthermore, all skins are available in the store.
When something new appears, it's simply added.
You can always purchase skins from previous seasons with currency. They often add free emotes.
To be honest, adding items to the pass that require fishcakes is weak. Especially since you haven't been giving these cookies away for free lately, and fishing profits are significantly lower. Add a game development roadmap and permanent items to the store, not just skins but frames and avatars. And at least change % of Nemo Buxies will appear in those level 150 chests. Otherwise, reduce the rewards to cookies and Egg Coins, because the appearance of virtual currency in chests is like hunting for a unicorn.