Director Steven Soderbergh told the Hollywood Reporter this weekend that The Laundromat is currently being edited and that it will be complete by the first week of April. Considering the film was just shot in October/November, it's an incredibly rapid turnaround if he's expecting that he'll be handing it over to Netflix by then. Apparently from that point, Netflix will "decide what to do with it."
Essentially what that means is that Netflix will decide when to release the film. My guess is fourth quarter of this year after a very minimal run in theaters to qualify it for certain awards.
It's difficult to discern what Soderbergh is necessarily saying when he stated the film is a "kaleidoscopic take" on the Panama Papers story, but it's nice to read that he's really happy with it. I'm still very much looking forward to finding out exactly how major a role Meryl has in this.