A PC port of the PlayStation 5 exclusive Stellar Blade may be in development. A DLC is also not ruled out.
On the website of the developer studio SHIFT UP, which is responsible for the PlayStation 5 exclusive title Stellar Blade, you can currently find an interesting vacancy
The studio is currently looking for a combat designer and the only platform mentioned is “PC”. However, it does not mention an unannounced project, but rather Stellar Blade is mentioned explicitly. This almost confirms that the PC port will come. Shift Up itself has already commented on a possible port of Stellar Blade.
A DLC could also be in the works, as the job posting also looks for someone to create monsters, which could bring more content to the game.
There is no official statement from the developers yet, so all information remains only rumors for now.