Zelda is bummed that her grumpy tiny mentor is gone, but she will make do. Did Azmuth leave behind anything he was working on? Perhaps Zelda could try to pick up where he left off on something.

But as far as Alastor, I would love for him and Zelda to meet again! He absolutely needs a blonde princess in his life to pester. TBH I think Zelda is convinced he was actually a figment of Asura's dreamscape way back when, and the two of them also have a lot of overlapping CR with the demon brothers.