I can agree with this too. Plus it is being handled by Mercurysteam so that kinda has me worried there as well. I'll be watching play-throughs before I make any rash decisions about buying this title. And it looks like Nintendo is still forking over their use of Metroid: OM's Samus rather then the traditional heroine we all know and love.
This is not true, they totally dropped Samus' design from that game (except for the zero suit's heels, ugh), she's back to her valkyrie-like height and body shape seen in Super Metroid.
The power suit is also bulkier and makes the OM suit look like an action figure.
I'm really satisfied with this game, i wasn't too impressed with the graphics in the trailer, but they are actually quite good when seen on an actual 3DS, the 3D effect is also really good (which is really unexpected considering that most of the 3DS games dropped it at this point).
The gameplay is very similiar to the other Metroid games, but it's also really unusual because enemies are way more aggressive and deal more damage than expected. You get more missiles compared to other Metroid games, but they are less effective on common enemies. Melee counter feels good, and it's actually quite challenging to get it right, especially later on when there are multiple enemies attacking you. The only thing i don't like is the wall jump, which feels more like an auto-jump and it's stiff compared to Zero Mission's.
Map layout is great, it's not as linear as Zero Mission or Fusion, but it's not completely open like Super Metroid. You've got these big areas where you must kill all the Metroids, and you can't go to the next area until you get all the Metroid DNA from the area you're currently in, it's really easy to get lost not know where to go, even with the map scanning ability or the Chozo gate showing on the map the next metroid you should go kill (both of these are optional).
I understand that you might have some doubts about Mercysteam because of their 2d Castlevania, but trust me, they made a real masterpiece this time, it's the Metroid game the fans really needed after all these years of nothing.