Microsoft is expected to follow Sony's lead and reveal the next generation Xbox in April.
CVG reports that numerous sources, including some within Sony, have tipped an April reveal.
Sony insiders say they caught Microsoft off-guard with a February announcement.
Since the first report, Microsoft's media briefing partner has registered the domain xboxevent.com.
The PlayStation 4 is due out somewhere in the world before the end of the year.
By Ben Salter