PS4.5/PS4K Is Codenamed 'NEO' And More Info

[mutantsushi]

Lawlight said:

mutantsushi said:
In Eurogamer's take on the leak, they discuss how there will be feature-parity across 4.0/4.5, i.e. that gameplay is supposed to be the same...

But then describe it by saying that PS4.0 might allow for 2-way split-screen gameplay, but PS4.5 might allow for 4-way split screen gameplay.
...Which really is a significant difference in gameplay IMHO, but that sort of thing may be technically allowable, apparently.

The last part is pure speculation from Eurogamer. There is no way Sony will allow difference in gameplay between the 2 consoles.

I guess time will tell.  
Honestly, split-screen is marginal enough now, I'd be happy to see it expand, even if being more of a PS4.5 exclusive feature.