I suspect its being tweaked for VR headsets
it would be the ideal showcase for sony's headset
Could work brilliantly on VR although I wouldn't have thought this was the reason for the delay, not like VR or NMS are new things to Sony.
If they wanted this as a launch title for VR then I would have hoped they'd have been smart enough to have considered this earlier and not a month before the game was scheduled for release.
Wouldn't it be better to get the game out in the summer as planned and patch VR support in September? Not sure I'd buy VR initially if all I can play is some tech demos and Battlezone, supporting a number of existing games will definitely help drive sales.