I'm not in the PR field but I really don't see a huge issue with Sony and their communication at this present time. They still have two huge PS4 games to release so those are the priority at the moment, even then TLOU2 is the first and it's 6-7 weeks away.
PS5 is probably still some 6 or so months away, there is a huge amount of time left for Sony to really start digging into the details like launch games and what not. I honestly don't see Sony rushing this at all, it's annoying for someone like me that wants to see PS5 games but I just think they are going to be really measured when it comes to announcements and what not.
I think Sony are gonna rely on TLOU2/GOT to have PS5 versions ready, Demon's Souls and Ratchet at launch and also a Horizon 2 trailer with a release date for next year......I think that's going to be out lot.
Sony definitely coasting at the moment, but also it's hard not to state how big TLOU2/ Ghosts are for them coming up, both will be marketed to hell and back. A lot is expected from those titles, both commercially and financially, we all know about TLOU2 but Ghosts has been in development for 6+ years, lots of pressure for it to do well.