Tree%? And All borders would seem fun

everything above ^^^

and place all blocks (Enchanced and Classic) instead of NG and NG+

Water lava and build limit that whould be cool to see also what picbear said an platform split from mobile to pc

All Modes with the following add ons and world gen NG or NG+, Small, Medium, Large TNT and/or no TNT etc..? Speedruns?

Mine all 3 ores (at least once) (Gold, Coal, Iron)