I know I might sound like a stupid killjoy but if it truly is called "Orbit Metal" then I'm convinced that only the base is going to have metal (sort of like Octa or Charge) whilst the tip of the Driver will still be plastic. If I am correct and it's going to be a metal version of old Drivers then think about it, let's say they made "Weight Metal" then it would be redundant
unless the base of it was metal too. It's kind of like how B-Daman Crossfire made metal versions of shooter cores where there's not much difference other than being heavier.
IMO the way the name sounds, it sounds like there's going to be a new line of Metal Drivers kinda like how with Prime Drivers, where they use old Drivers and turn it into something "new".
That's just my opinion, you are free to disagree. Who knows? I might be wrong and Om might just be a very unique Driver that's not called "Orbit Metal" but I won't know till it's out.
Eh, I will think of something to put here...
... later ;)