We had a direct not even two months ago. Also, we already have a bunch of stuff already for 2019. What more can they possibly reveal for this year that shouldn't be saved for E3?
They don't tend to reveal much at e3 anymore. We can get more news on animal crossing, luigi's mansion, Mario maker and many more. They have a huge amount show off this year. I think there is a big chance we'll get a direct this month. Not having one before e3 leaves too large of a gap between the February direct and e3.