bookshelves in all the different wood types.
the current one would be oak bookshelf. they could have different textures the same way doors are
Redstone lamps and flower pots in all 16 colors.
terracotta slabs / stairs in all 17 types
No need for stairs and slabs of every block. but having terracotta ones would be nice
Otters :3
some kind of ore in the end.
Sandstone bricks
Chiseled and brick forms of diorite, andesite and granite
Vanilla command to return to world spawn (default to OP only)
Seperate gamerule for explosions than just mob griefing. (fireballs, tnt, ghasts, beds in the nether etc)
Slab, stair,and block templates with say 256 block states. allowing datapacks and plugin makes to implement custom blocks in a less hacky manor
they would be in /give only and recipes and textures etc would be added via datapacks for eg
same thing for entity models.