We don't have the EMS graphics, symbology, and layout done on the next generation yet, which is why it's not on the preview that we've shown. But generically, think of the the next generation as a set of screens that can do about anything with different modules connected to them.
So you could, for example, have a single screen with primary instruments, engine instruments, moving map, etc. Or you could have those same modules and display them over multiple displays, in different layouts that splits up the different functions over the different screens (much like you'd see on an "integrated" panel in the certified fleet)