Nobody releases games in the summer?I highly doubt it. Nobody releases games in the summer let alone consoles. I've always stuck with my feeling that both will once again launch within weeks of each other.
And it can't be cross-gen going by that multi-dimension design. Only PS5's SSD can support that.
Madden, Judgment, CTR Remake, Fire Emblem, DQ Builders 2, Control, MHW Iceborne, FIFA, NBA 2K are all pre-mid September. Usually Destiny installments or DLC are first week of September too.
I bet it will be November 2020, per usual. But a September launch would help out third parties. Let third parties carry the load with launch games in late Sept, then have a big first party game in October or November.
Not to mention October is a good month too. And October 23, 2020 is the PS2's 20th anniversary in USA.