We actually have some changes for how the Collector's Edition Angelic Wings function coming up! Currently slated for Patch 2.0.1, once a player turns on their wings, the wings will stay on even if the player logs out and logs back in at a later date.
Will this change also change how the kerrigan wings work? I hardly ever use them because it's more of a hassle than anything else.
Your Zergified Blade Wings will be usable in the same manner.

For the Swarm!
végre