/jp/ - Otaku Culture

Okay so I took the liberty of checking the homo's schedules so you know exactly which ones definitely AREN'T collabing with Ame.

Aruran has Beyonetta 2 planned for the time Ame's collab is, so it's not him.
Shien has nothing scheduled the day of the collab, so it's not him.
Miyabi AND Temma have a collab planned 2 hours after Amelia's stream. Nothing else.
Rikka also has a stream planned 2 hours after Ame's collab stream. It'll probably be Hollow Knight. Nothing else.
Izuru doesn't have a schedule up, but he never collabs outside of the Homos and he hates English speakers so it's definitely not him.

The rest also don't have schedules up. That means you can expect it to be Roberu, Oga, or Astel IF any of the homos. However, Roberu is very cautious about his interactions with any of the girls and Ame has said she only does collabs if she's asked. So I think the only real possibilities are Oga and Astel.