I'm not going to give you advice, I'm too new and full of questions myself, but this is what I would do:
I would pull the queen cell out and get the new queen. If there is no capped brood in the nuc they are going to sit still for a long time, waiting on the virgin to mate and start laying. You need a laying queen. She should be mated and ready to lay. You'll have to pull the queen cell out before it hatches. You'll also have to put the queen cage in with the bees and let them release her, or at least leave her cage for a few days. If the queen cell hatches find the virgin queen and pinch her, or give her to another beekeeper in your area. Leave them queenless or queen cell-less for 24 hours or so then put the new queen cage in. You could use the virgin to make a split with, but I your good nuc may not be strong enough to split yet.
I would pull the queen cell out and get the new queen. If there is no capped brood in the nuc they are going to sit still for a long time, waiting on the virgin to mate and start laying. You need a laying queen. She should be mated and ready to lay. You'll have to pull the queen cell out before it hatches. You'll also have to put the queen cage in with the bees and let them release her, or at least leave her cage for a few days. If the queen cell hatches find the virgin queen and pinch her, or give her to another beekeeper in your area. Leave them queenless or queen cell-less for 24 hours or so then put the new queen cage in. You could use the virgin to make a split with, but I your good nuc may not be strong enough to split yet.