As IGN reports(Opens in a new window), Nintendo, Sony, and Microsoft are all expected to give the first physical E3 event in four years a miss. That’s based on “multiple knowledgeable sources,” but all there companies have yet to officially confirm their decision not to attend.
https://www.pcmag.com/news/can-e3-survive-without-nintendo-sony-microsoft-we-may-find-out-this-year