Saw this on Era. Apperatenly the same guy that leaked that sony wont be at E3 2019 is saying that Sony plans on having a small reveal mid 2019 and a full reveal at PSX 2019. He also claims that devs have devkits and its a monster spec wise and expectsit to launch in 1-1.5 years.

And yeah it looks like Anthem is getting delayed.

https://www.resetera.com/posts/15029209/

Lots of PS5 rumours lately. I believe we will get something from Sony soon.

When rumor galore starts to flood the internet, it is a signal PS5 will come by 2020.

I asked this person on the reddit thread if the PS5 is coming out in late or early 2020, but I haven't gotten response yet.

Also this leaker has said Death Stranding, Ghost of Tsushima, and The Last of Us Part 2 are gonna be cross gen.

https://old.reddit.com/r/PS4/comments/9x2r4f/sony_is_not_going_to_appear_in_e3_next_year/e9s0q5p/

He said either March 2020 or November 2020.
https://www.reddit.com/r/PS4/comments/9x2r4f/sony_is_not_going_to_appear_in_e3_next_year/e9s322v/?context=3

I just saw that and yeah it seems like the date of the PS5 has yet to be finalize, if they what he is true and Sony might have it launch in November 2020 instead. Though if they do reveal in mid-2019, then I am expecting a March 2020 since new console reveals usually starts killing the momentum of their predecessors and I don't think Sony would want to go through that for a year and half. 

I'm down for a PS5 reveal at PSX

It’s very likely they’ll announce it at the 25th anniversary PSX. Can’t see them tease it earlier, unless it’s really coming out early 2020 already. Although that would seem like a smart move, if they want to get a small head start on the new XBox.

They wouldn’t make the same mistake MS made with the Scorpio reveal and damage PS4 sales 1.5 years in advance.

My thinking based on the rumor, is tease PS5 before e3, and see if you can force MS to make a move or spill the beans at E3 like they did before, then hold a massive 25th anniversary PSX PS5 reveal event to be remembered. Whether it launches soon after, or early 2020, doesn't really matter, as long as the price is right. A $399-$499 PS5 shouldn't hinder a $199 PS4 much at all.

If I'm Microsoft I'd wait a bit and then release a more powerful system in late 2020.