Would it be beneficial to wait until they're all laying before free ranging them all day? Are they more mature and likely to come home once they begin laying?
They've been in that new coop and run for two and a half weeks. If you let them free range they should return to that coop and run to sleep.
It is possible they will move into the main coop and sleep with the other hens on their own, I've had that happen. You may have to eventually move them yourself if you want them to sleep together. I've had to do that too.
They are living animals. It's possible they will decide to sleep in trees as Folly mentioned above. I consider that unlikely, not sure how often she's had to deal with that and what the circumstances were, but with living animals it is possible. At some point you are going to have to face that possibility. But since the older ones will not be running them out of the different coop they are now sleeping in, I consider that a lot less likely. I'd open it up and let them free range with the others and see how it goes. You may be pleasantly surprised.
They've been in that new coop and run for two and a half weeks. If you let them free range they should return to that coop and run to sleep.
It is possible they will move into the main coop and sleep with the other hens on their own, I've had that happen. You may have to eventually move them yourself if you want them to sleep together. I've had to do that too.
They are living animals. It's possible they will decide to sleep in trees as Folly mentioned above. I consider that unlikely, not sure how often she's had to deal with that and what the circumstances were, but with living animals it is possible. At some point you are going to have to face that possibility. But since the older ones will not be running them out of the different coop they are now sleeping in, I consider that a lot less likely. I'd open it up and let them free range with the others and see how it goes. You may be pleasantly surprised.