The Forsaken Hollows expansion for Elden Ring Nightreign was released at the end of last year. Then, in January, a patch was introduced for the game, and since then, there has been silence.
Some fans of the game, like Chance_Drive_5906, believe that FromSoftware has simply ended support for Elden Ring Nightreign:
It's been three months since the release of the DLC. That was the last new content we got for Nightreign. I think it's safe to say that nothing more will be released, and FromSoftware has moved on to other projects. The last patch for this game was released almost two months ago, so it looks like there will be no more balance tweaks either.
Members of the Elden Ring Nightreign community are calling on developers to return and continue releasing updates.
There is a belief that FromSoftware is preparing a festive update for the anniversary (in May).