i have been talking about this regarding arcade and casino since as early as five years ago, some of those were meant to often bring up in-server discussions of ongoing gameplays.
what did we get more in casino so far? five card draw with betting limits, Keno that hasn’t had its betting amount bug fixed, average Bingo Night, table Blackjack with only classic betting types, and horse racing with only basic betting types.
even the real-life casinos already have rolled out much more exciting side bets type like Lucky-7 on Blackjack, so no real reasons for developers to never implement those to get players excited.
arcade side? still to this day, there aren’t anymore ways to play it when those were supposed to be added ages ago. we did get target shooting, some carnival games on the Boardwalk; only like Wheel of Fire and Ultimate Cow Wheel got a reasonable balancing.
implementing daily objectives isn’t a good idea either, it is not rare to see people log into the game, complete them and out - like going to a gym just to use their toilets.