I have a couple of suggestions
More islands to explore such as mountain regoin forest jungle swamp
I would love if you made the desert boss fight harder or had multiple diffucutlties in the game so you could choose if its Super easy, Easy, Medium, Hard, Insane
I would love if there were path blocks added in that stuff would not spwan on top of
Fences and fence gates would be good for keeping animals in
Animal breeding or some kind of way for you to get more sheep and chicken without waiting for them to spawn also a way to lure animals into fence gates
more worlds to choose from such as a world were its always night and different monster come ore a world were you are and a tropical island and islands spawn far away so you have to build bridges to get to them
A way to configure how many recources spawn in settings
a way to build houses
a juke box such as what is in minecraft
A way for the community to Mod the game
A charater customazation thing
more bosses
more enemys
more ores