Pina said he's been busy writing a fifth season of the show - with the aid of a four-legged new writer, by the looks of things.
"Writing La Casa de Papel 5," he wrote on Instagram, before also telling us about the t-shirt he's wearing in the picture: "Maybe someone identifies that shirt I wear with the one that gave Tokyo [Úrsula Corberó's character from Money Heist] its name. But it's not like that.
"Since then every time I see a Tokyo shirt I buy it, but the genuine one, the authentic one that she wore on the day of her christening, is the one in the second image."
To be honest, I was too busy looking at that wonderful doggo to notice what his top said.
It's worth noting that a fifth season hasn't been officially greenlit by Netflix just yet, but Pina looks pretty hopeful in that snap. He's also previously confirmed to Deadline that there will be a fifth season, adding that 'Netflix will put a bomb in my house' if he spills any further details.
Thankfully, Pina has previously promised us that there's plenty of scope for more in the future, having previously suggested there's potential for spin-offs, too.
Speaking to The Oprah Magazine earlier this year, he said: "We do have many possibilities for some spin-offs, yes, and I think that's thanks to the strong and powerful identities of the characters.
"We've always looked for characters to have a very complex, layered design. So I think almost every character of Money Heist has a duality that we would like to see in a spin-off. We could watch any of them in other contexts."
Elaborating on how spin-offs could work for differing characters, he said: "I think Arturito could have a black comedy. Berlin's case for his own show is very clear; he's a misogynist, a psychopath, egocentric, a narcissist, a delinquent, a rapist... but still there are lots of people who adore him, because he values friendship, loyalty or fraternity.
"From Nairobi to El Profesor... Denver is yet another character with his own charm. I would love to write all of them as spin-offs!"
LADbible has reached out to Netflix for comment.
Featured Image Credit: Netflix