I'm Camp Masked Guy Is Ilberd for sure. It's either him or some completely new character but I don't know why he would be masked if it wasn't Ilberd.

Sophia looks really cool. Makes me want to fantasia to Azeyma as my chosen deity. If the patron deity is going to have little to no effect on my character I may as well pick one that has a cool looking primal associated with it.

So far I like the look of the final phase Alexander. It's looks like the story will finally get serious and I can stop making fun of the bad steampunk robots and cheese empire goblins.

The scene with Tupsimati doesn't look like a flashback to me. Is there any reason it has to be? Couldn't Papalymo just be hanging on to a piece of it for something or other?

Garuda is definitely either an attack or an add. You can see the final boss of Xelphatol behind her when she shows up in the trailer.