New queen needed?

3 weeks ago, 22/5/21 we had had queen cells and superceedure cells for a couple of weeks so we moved our queen with 5 frames with brood, bees and stores to a second hive and left the original hive, which had drones in for 21 days. 
Unfortunately we have definitely lost our original queen we moved to hive two and there are a few bees still in that hive keeping stores but that's all - not sure  if due to the bad weather end of May but we did put sugar syrup in with them.
We have had a look in our original hive today 13/6/21. Its still busy and there is lots of honey being produced. there are a few drones and still a capped queen cell and a couple of superceedures but no sign of a laying queen - no eggs or brood. Is it too early to show yet?
We now don't know what to do - do we need to get another queen before we loose this hive too?
Any advice would be much appreciated
Thanks Andy & Carol