Anyways I used to think the album isn't that far away but she said at the Golden Globes that she didn't even pick a theme for the album. So don't get your hopes up for a release before August
She didn't wanna reveal when it was coming.. she could've been lying and could've had it ready already
To be fair, you normally mix and master all at once. It's likely they're doing the whole record, or least a bunch of stuff. Especially if she's spent two days straight in the studio.