[RUMOR] Horizon Zero Dawn 2 on The works, It was planned to be trilogy and HZ 2 planned for PS4 but shifted to PS5 to take advantage of new tech and architecture on PS5

[HollyGamer]

According to VGC, Sony is planning to turn Horizon into a trilogy

Horizon Zero Dawn 2 shifted to PS5; described as "gigantic" with more freedom to explore and possible co-op mode

Possible standalone co-op game coming that carries progress over to HZD2https://t.co/DhrkWlIEx2 pic.twitter.com/tIQYNcvFQQ

— Nibel (@Nibellion) April 24, 2020

https://www.videogameschronicle.com/news/horizon-zero-dawn-2/

I can see the reason they are ported the first one to PC,  is to attract others (PC player) to play the sequel on consoles (PS5) beside selling more copies (just my theory ) . There is possibilities they will make the sequel exclusives.