Ghost Recon's premiere starts at 11:30 AM Pacific time (tomorrow), Sony's "State of Play" livestream doesn't start until 3:00 PM Pacific time (tomorrow) - they're "new, unannounced" game isn't Ghost Recon.
It's highly probable to be Call of Duty, especially since a lead dev tweeted last week that the reveal to this years COD "will be very soon".
Yes i know its not GR. Ive stated that a few times already.
It might not be CoD either, but it is definitely more likely by default.
Sorry, I assumed too much.
If it's not COD, then I'll be surprised as most COD's in the past get announced in May - with COD WWII being announced in late April.