>>8744508I'd be okay with swappable sets of open and closed wings. Yeah, it'd tack on some cost, but Super 7 hasn't yet been too shy about excess, like giving us an entire separate set of painted weapons in TMNT Ultimates just because people complained about the sprue marks. IIRC they're even giving us the spare sprues for figures that never came with them originally.
The only real problem is Lexington, whose wings attach to his arms. I don't really know what to do there. There isn't really a good solution for that so far, you either end up with limited arm range, or strange disconnected wings that only look good in a few poses, like Marvel Legends Black Bolt.