Frankly I wouldn't be concerned about the whole "Morriband" thing. Rewatching the whole Citadel trilogy, I was certain it was on Peragus. Given how the planet looks like this
it's certainly right. Frankly, it
looks like a spot on recreation of Peragus. But for some reason this
is what they call the planet in the intro they have. My point is, they might use a new name, but if it looks the same it probably is. So Morriband is almost certainly another name for Korriban.