Sony is pretty much set, in my opinion. They have WiLD, Ghost of Tsushima, The Last of Us 2, Days Gone, and Death Stranding for 2019/2020. I think the Medievil remaster and Dreams will be pushed into 2019, as well. The PS4 will also have 3rd party games like Shenmue 3 and Final Fantasy VII Part 1 to help fill the gaps between Sony's 1st party releases.
Nintendo, show me that Smash and Pokemon.
After the disappointing reception of Sea of Thieves and State of Decay 2, I would say Microsoft has the most pressure to deliver. This year is Forza Horizon year, so that definitely helps.