Hmm. I doubt he'd care about remaining anonymous. And after being held back by TR for two weeks for training, it's likely he won't be in the right state of mind to stop and think. But at the same time, yeah, it might be a bit early for everyone to know everything about Caster upfront. xD

It'll happen right after the 4th wall. Is there any chance Saber might be distracted by something that's happened then? Or be teleported to someone else? Alternatively, I could... have Caster teleported somewhere else during the 4th wall.