Episode 1 will release on March 3rd 2020

[Sephiroth]

Yeah everything in that trailer I was like "...Yeah, OK, I can get on board with that" until the ghost stuff. That alone raised a number of concerns.

1) What is this New Thing? Change is scary.
2) The moment where Cloud and Aerith met in the original was not a moment where Aerith panics and begs for help. As everyone else runs away around her due to the chaos from the reactor, she approaches you and kindly asks if you would like to buy a flower. No hint of fear, just the nice flower girl selling flowers.
3) Aerith never really seemed to be the "help me!" type. I really hope that's not indicative of her overall character in the remake.

Aerith is asking for help and is helped by others about 1 million times in Final Fantasy VII and herself shouting as she is corned already starts as early as in her own church. That she is helping others courageously by helping Tifa and Marlene and running into her own death does not make her somebody that cannot be afraid or ask for help. That Aerith has a "shining good" side, her good soul, that is overly exposed in a short movie - where I cannot blame them for not showing all sides of every single character - or FFVIICC where here more "not just pure" side is a direct result of her contact with Zack will not change anything about any other part of her character that is displayed in FFVII.

As far as the shadow is a thing, it is either a harmless entity that has nothing to do with the overall story or, and that is the only thing that comes close to this, it is some sort of foreshadowing of the Black Lifestream that Sephiroth creates. But Sephiroth is not even awake at that time and the Black Lifestream is the direct result of what happens after the final battle so as long as that is not retconned I doubt it. Everything else would be new. And I am all in for changes because CD1 has a lot of unnecessary or wonkily written scenes, especially in Junon, Corel, Gongaga and Rocket Town. The only thing I want to hear soon is Those Chosen by the Planet. I mean the first Remake trailer contained it because the Advent Children made theme "Beyond The Wasteland" incorporated it but I mean the real deal.

Heidegger looks surprisingly good, I guess. A bit too slim though. But I have to agree with Jinx here (not that extreme though). The combat with Cloud looks a bit too simple and limited too me, especially the slice sound was not satisfying. But I am sure there will be a lot more. I have played very combat limiting games. This surely is not one of them.