It has been quiet on the Sony front when it comes to E3 2017. Microsoft, EA, Bethesda, and Nintendo have been actively sharing new information about their E3 plans including conference/direct times. It has been revealed via Geoff Keighley on Twitter that Sony will without a surprise hold their conference on Monday, June 12th at 6 PM PST.

Just got my invite for @playstation E3 event – Monday June 12 @ 6p! pic.twitter.com/3MxcFoUKr3

— Geoff Keighley (@geoffkeighley) May 3, 2017

Sony themselves have yet to announce anything yet regarding their E3 plans including what they could be bringing to the floor or if they will have some sort of fanfest like Microsoft is doing with Xbox.  At Sony’s conference we should be expecting without a doubt more games and they could possibly have some surprises coming just like every company.
We will have to wait and see.