The sudden shift in opinion that 'Sony doesn't actually care about E3, everything's being saved for PSX' is both hilarious and terrifying. Literally 72 hours ago, everyone would have agreed that Sony was the marquee star of E3 because they put their biggest games on display, with great surprises year after year.
One weak showing later, and the collective opinion is that Sony is ACTUALLY just holding back for other shows, and that E3 really isn't as relevant as it once was. Despite Sony turning their entire pressed into the a lavish stage display with pyro, live instrumentation, and arial ballet performers.
But yeah, E3 is totally just a bottom-tier show for them this year. PSX will clearly have TLoU gameplay, Gamescom a new Souls title, and Death Stranding gameplay at PAX West.