Inside EV's article so take it with a grain of salt
https://insideevs.com/news/783707/lucid-midsize-sedan-platform-winterhoff/
I'll let my personal bias come in and say this: the way I see it, sounds like an RS6-like performance wagon is still a possibility. I'm on my knees begging for a tri-motor Sapphire midsize stationn wagon with steel brakes and winter tyres. If there's an option to go with a regular interior, even better.
But in all seriousness, if this is true, I hope that means a wagon is more likely to be one of the midsize models. I'm getting tired of crossovers.