My understanding is that the foragers will return (are oriented to) the location, not the hive, so yes, they will return to the "new hive". Does the mentor/new keep understand that there are queen cells and not necessarily a laying queen?
My further understanding, perhaps incorrectly, is that queen cells have their own pheromones which let the bees know all is well. Congratulations Jen! TaaDaa, you did it! Ted