I’m guessing you mean Elseworld?
Elseworld – One universe inside the Omniverse that we don’t know about yet. The multiverse team will explore it in a title written by Williamson.
Linearverse - One universe inside the Omniverse in which characters live through all former main-continuities as one person. There are no future stories planned right now. It’s basically a sandbox to piece one cohesive timeline together.
I'm not really writing it off. It's literally what's stated inside the article:
The Linearverse seems to exist as a storytelling option, to tell specific tales that require or benefit from the premise (for example) the current very serious Batman actually had and remembers his wackier, kid-friendlier science fiction-inspired adventures from the '50s, or that Superman and Batman have been friends for nearly 80 years.
As of now, DC has not announced any plans for more stories set in the Linearverse, but it is a new club in the bag for writers with a story to tell.