Is the queen ordered to replace the current queen, or is it for a split?
If they are that far along on queen cells and there are larvae in the cells they may have already made the decision to swarm. If the brood frames are spotty with a lot of nectar backfilled brood cells, it might be too late to change their mind.
If that appears to be what you have I would do a split right now. Make sure the queen with a smaller split is moved to the new location and leave all the frames with queen cells at the old location, cutting out all but a few queen cells.
The split at the original location will produce a new queen and hopefully the split with the old queen will not swarm. You have another 9 days until your queen shows up, so there is time to evaluate where you stand before she arrives.