Really mixed feelings here.
Playing Metroid NES since I'm 6 and all....First MP4 trailer in 2017, so seven years later ?
Full scale battle IS NOT Metroid. It is Halo or whatever, FFS.
They made this very mistake on MP3 which was lame at best (samus do this, samus do that). Besides scarce high notes, Retro studio was already out of ideas. Well, Nintendo updated Metroid to 'modern audiences', labyrinths aren't as popular as 'in your face' shooters.
The second part of the trailer definitely confirms my feeling:
it seems to want to rectify this mistake by trying to appeal hardcore fans with exploration and mystery, no bang bang crap. This game is not for me.
For fans:
Metroid DREAD is excellent, MERCURY Steam studio is very, very talented.
Metroid Hack (prime trilogy) runs flawlessly on Steam Deck, so all fans are happy.
Yuzu is still lurking around so, if this is a cross gen title, well...