I really really like the way some older wing decors look- Angel Wings from October and Greater Flamingo Wings from the Black Friday sales to give an example- I think they tend to look really nice and even prefer them over some newer wing decors.

There's one glaring flaw with them though- that being that oftentimes, layering decor with them can be really tricky, due to the fact both wings are on the same decor. I would love to see these decors split the way newer wing decor (for example, Bone Wings) is. That being, two seperate decor for each wing, one top, one bottom.

The biggest hurdle I can see for this is that it might require artists to fill in the rest of the wing for the bottom layer. I'm not sure how they were drawn originally, so that might potentially not be an issue. If they had to fill in the rest of the wing, it could prove very tricky trying to match the original lineart style.
(as a sidenote, due to the way things like Draconid eyes were completely redone: I am absolutely not for completely redrawing the old wing decors- a big part of why I'm so drawn to them is the way the lineart is done which often fits better with lion lineart than some- take the wing decors from June for example. That would be a probably easier solution to this problem, though)

If this happened, people who own the original decor would recieve a copy of the set, and decors in shops would have their prices split- for example, Black Wings (30 DS) would be split into Black Wings [Top] (15 DS) and Black Wings [Bottom] (15 DS).

Of course, this isn't an urgent suggestion, just something I've had rattling around in my brain for a while!