If i switch my profile from 1.7.10 to 1.8 will it load all my stuff and place, along with the rabbits and Ocean monument?
Added (1). What do you mean by unloaded chunks, I have read that rabbits are just introduce to 1.8 and above. So i don't know what to do. Still a newbie in this
Yes. But as the other answer said you need unloaded chunks to find ocean monuments but the rabbits will still spawn randomly. But all your building and things inside your chests will stay.
If you want to find the rabbits and ocean monuments with a world from 1.7, you'll need to find unloaded chunks.