Easy Fix
Sandstone. Not this stupid dyed glass stuff. The (relatively) new update is bad. Countdown timers? REALLY?
Of course, some people love this stuff, but there should be a way to play the older version.
This is the main thing that would make me come back to cubecraft, since I have (mostly) changed to Hypixle.
Game Mode Ideas
It would be fun if there was another mode in eggwars that was sorta skywars based. Instead of trading, you get chests on the island. Every few minutes, chests will refill. You can upgrade chest loot somewhere, and loot gets better as time goes on. BUT, of course, mid needs to have a use. So, Island chests are limited to iron/gold items, gold being less common. Diamond drops are only at mid, and emerald items have small chances to drop at mid. There could also be currency in the game, but only really for food/blocks. Everything else can be bought at a jacked up price, or found in a chest. You could mess around with item drop chances, chest loot, chest drop rate, and other stuff. I think this is a great idea for a gamemode. :)
Random Stuff to Add
I think there could be a way to trade something in overpowered mode to get another egg after yours dies. It would be like ten stacks of diamonds (the price might need to get changed) after your egg dies. Then you could buy another egg, place it down, and become glorious.