First. I don't have any experience with eastern wild poults, so my ability to help you in this is limited. However, if you have experience with eastern wild poults, we may be able to work a couple of things out.
If this poult was the result of a wild X royal palm, it will be carrying a black-wing gene, a palm gene, and a Narragansett gene. All of these genes would be recessive, and so they will not express themselves fully (the exception being hens would look like Narragansetts). If the poult us a wild X palm crossed back to a wild, it may have all, some, or none of those recessive genes. Palm genes and Narragansett genes can be "dilution" genes in some instances, and can lighten or frost some feathers. This is where you or someone else with experience with wild poults needs to jump in. Does the poult look lighter than a typical eastern wild? If so, it may (or may not) be showing a recessive palm or Narri gene.
A test to tell what genes it has is to mate with with a royal palm. If it is carrying just a balck-wing gene, you will get black-winged wild turkey toms (sort of), and bl-wing narragansett hens. If it is carrying just a palm gene, the offspring will look more or less like Oregon gray toms and Narri hens. If it is carrying just a Narri gene, the offspring will all be Narragansetty. And then if it has combinations there would be lots more discussion. I was intentionally soft on my descriptions of the next generation offspring because I am not entirely sure what eastern wild genes consist of and how they may influence the heritage genes that I understand a little better.
Sorry I couldn't help you more.