This review may be just repeating the Beretta marketing-speak (from the mouth of Beretta Defense Technology’s John Chapman), but it is a pretty good list to look at. There are, IMO, significant steps forward from where a Glock G4 stands today.
It is also worth noting that they are not settled on details of the package(s) that will go out to various Civilian/LEO markets. That's part of the strategy I think: something that is a decent base which can be readily manufactured with various features for a given market.
Note this is a "chassis" pistol, like the Sig P320: the trigger group is serialized and the rest is swappable. If the US Military program's definition of "modular" ends up requiring this degree of modularity, then Beretta looks like it can meet that checkbox (and all the other checkboxes the US Military might throw out there as well, all the way down to a mag with no holes in it). First configs will likely be 9mm and .40 S&W, but I would be very surprised if they haven't planned for a .45 ACP conversion as well.