So I got the code and redeemed it, and it's currently downloading right now. The thing is, it just shows up as the standard ESOTU, when I had the Imperial Edition (which my billing history shows as ESOTU Imperial Edition for PS4 with account copy) and on top of that, both the standard and IE on the PSN store are both still available for purchase/preorder.
So, is there a difference between the icon/name of the slandered and IE games, and will them showing up as still for purchase affect anything? It's the first time I've redeemed a code for a game on PSN and still had it open for purchase, so I really don't know.