The good news came in a casual tweet sent celebrating the anniversary of her 2012 album Visions. She noted that when her next album comes out in 2018 she'll have put three records in six years, a decent work-rate and one she's happy with. Any longer though and things wouldn't be so great ("7 years i'd be judging myself a bit.")
actually it's 2012 so 6 yrs and a nu one out this year so 3 albums in 6 years is not a bad level of productivity ... 7 years i'd be judging myself a bit— Grimes (@Grimezsz) February 1, 2018
In August last year Grimes gave a brief update on the progress of her new music. The Canadian artist said she is venturing into "unexplored sonic landscapes" as she writes new music. More recently she starred in a campaign alongside Joanna Newsom and Kirsten Dunst for fashion label Rodarte.