The fact that at this stage they still can't put out a teaser or any gameplay footage, speaks to development hell and that it's undergone more than one change. This is following the same pattern as Andromeda and Anthem. I don't know if anyone remembers, but there was a 2 year period where everytime BioWare said they were finally going to show off Andromeda, they just ended up showing behind the scenes videos, even at E3. That's because the game went through change after change and development was going terribly. It was the same for anthem too.
We've known for a while now but BioWare have some serious management issues. If this game doesn't work out I could see it finally being the final nail in the coffin. I don't possibly see how they could recover. Most of their talent is gone, and management is obviously unfocused, irresponsible, and disorganized. Where's Jon Taffer when you need him?