Halo: Infinite Trailer AI Chip

Ok, I know these facts:
-The chip the Master Chief inseted into his helmet in the trailer is one number off from Cortana.
-The Chip starts with the letter M
It ends with the number 0 or the letter O. Most likely a 0.
-Who or what is the AI name and history?
I think it could be either a remade Cortana, or Medicant Bias.
Any thoughts?

There are plenty of videos out there with theories on who the AI is ranging from a new Cortana, the AI blackbox, and it being a totally new AI all together. I personally think it’s a new Cortana but that’s just my opinion.