I’ve struggled to recreate it in a custom but I heard a twinkle/bell noise near B site tube on Icebox. This reminds me of the Yoru footsteps found prior to his announcement. The bell noise heard was unique, distracting, but consistent with Valorant’s other sound effects, so I could imagine a noise-oriented agent to be the next to be announced. Yoru’s footsteps have also proven to be mostly useless in most competitive situations, creating space for more CSGO ‘decoy grenade’ like abilities in Val.

Will edit if I can clip the sound.