Since you are going to be under 5/24, you probably have not been getting new cards the past 18 to 24 months. But your existing accounts at Chase seem a bit too many with the 2 InkCash from downgrade.
What are the paths of the 2 downgraded Ink Cash card? If both were from avoiding annual fee on 1st anniversary (after the initial sign up bonus) I would say you should leave the bear in hibernation.