I'm currently playing in CrundeeCraft and I know that some worlds are resetting periodically, but there are many mods (divinerpg, fossil, thaumcraft, etc.) that do not present all the necessary objects in the farmworld and therefore obliges to farm in the overworld or to give up its development, with which makes the pack unplayable or just boring. Wish you could fix this problem somehow.
Do you have any specific examples? What 'necessary objects' are you expecting, but unable, to find in the FarmWorld?
Sure. DivineRPG ores, fossil's naturally spawning blocks (fossil blocks, permafrost, etc.) and buildings, thaumcraft's eldritch portals, etc.
The eldritch portals are an issue within the mod itself being coded only to appear in the "normal" world.
I understand those portals can't be in farmworld, but you could also to regenerate them just as you do when a user disappears and loses his claims for all the new players. At the moment all the overworld is just like a gruyer cheese, full of holes because of players and there's no way to advance in game.