We did this during our last trip. As stayed, Bell Services wil take and transport your luggage to the Bell Services of the second resort. They will NOT deliver it to your room like ME does. You do need to call down and be preent in your room for them to deliver it. Or you can pick it up directly.
Be aware that if you are using the dining plan, that you would have two seperate plans. For our trip, we needed to get to our second resort in the morning to check in because we had no dining credits left on our first stay.