[Shadow5YA]

I don't believe they're going anime original just yet.

Spoiler for Speculation based upon game content:

The way I see it, Adam is kidnapping 9S like in the games, but since there was no Goliath, alien base, or crater formation in the middle of the City Ruins, the Copied City will be linked to the Flooded City instead.

Then 2B goes to rescue 9S, fights Adam who willingly disconnected from the Machine Network, then Eve hunts them down for revenge and we're on track for Ending A/B. (I think the cult will be skipped too)