I'm not sure about hosting the gathering, but depending on the date/time if no one wants to, I'll be glad to pitch in and help make it happen. I'll be cosplaying an Angel Variant of Petra Ral as well as her canon uniform version on another day at ALA.
Anime LA 2016 (All 3 Days)
Lady Sif// Thor: The Dark World
Cassandra Pentaghast // Dragon Age: Inquisition
Ada Wong // Resident Evil 2 & 6