[2022] Is Worldslayer a separate download?

I was originally under the impression that it was just DLC for the base game. However, I was reading the GameInformer article, which has now confused me a bit. This is what they said:

"The enhanced edition of Outriders includes the base game along with every update and the New Horizon content. However, players who own the original game can upgrade to Worldslayer and seamlessly transfer their progress data. Existing players can bring their characters into Worldslayer, but if you’re looking to start from scratch, new characters can be boosted to level 30 to be readily available for the expansion. It’s also possible to play Worldslayer’s content first and then return to the original campaign."

It seems like they're suggesting that Worldslayer is a separate download/game and you'll be able to import your original character to it if you've played the base game? I don't think that's correct though, right?