MCU Star Teases Secret Guardians of the Galaxy Spin-Off You Didn’t See Coming

Every now and then, Vin Diesel pops up and drops something a bit odd or eyebrow-raising about his future with Marvel. If you follow him, you might have noticed he's got a habit of teasing projects that nobody else in the Marvel Cinematic Universe seems to know about—or at least, nobody talks about in public. Case in point: his campaign for a Guardians of the Galaxy spin-off, centred entirely on everyone's favourite talking tree, Groot.

Vin Diesel on Instagram: Planting Seeds for Groot's Solo Outing

So, what sparked the latest speculation? Vin Diesel, never shy on social media, whacked up an Instagram post where he rattled off a grab bag of future projects. Among mentions of Riddick and something called 'Rock ‘em Sock ‘em', he slipped in this little line: 'Some say Groot is Disney’s most valuable asset.' He also threw out the title 'The Arbor King'—which, if you've been paying attention, is the name he keeps bringing up for this supposed Groot solo adventure.

It’s worth pointing out that this isn’t a one-off. Diesel's been banging on about The Arbor King or 'Planet X'—yet another alternate title—more than once. About a year back, he posted about reading 'The Arbor King' story to his family, calling it the 'long-awaited story of Groot’s return to Planet X.' In his words:

'There’s movies the world wants, my incredible fans want, and of course, the ones the kids want. We are Groot!'

And that wasn’t even the first time. Not long before that, he posted again, saying: 'Disney wants their Planet X! Which some say is Marvel’s most anticipated movie, haha. The film where Groot returns to his home planet.'

Let’s Be Real: Is This Thing Actually Happening?

Here’s where it gets a bit… suspect. Despite Diesel’s regular hints (or full-blown announcements, depending how you read them), absolutely no one else in the sprawling Marvel machine has publicly said a word about it. There’s been no official confirmation from Marvel Studios, no cryptic retweets from the rest of the Guardians cast, not even a sliver of gossip from the online rumour mill. If something’s going on, it’s bottled up tighter than Groot’s own vocabulary.

A Quick Timeline of Vin's Groot Spin-off Teases

• Most recent: Instagram post mentioning 'The Arbor King' as a work in progress, saying Groot could be Disney’s most prized character.
• Last year: Instagram post about reading 'The Arbor King' to his family, calling it Groot's return to Planet X.
• Early last year: Another post cryptically saying 'Disney wants their Planet X!', joking that it’s Marvel’s 'most anticipated' film.

So, to sum up (without actually ending)—Vin Diesel is out there doing his own PR, hyping up a Groot movie that currently only he seems to be promoting. Marvel, meanwhile, is keeping schtum. If this thing does exist, they’re guarding it like the last Infinity Stone.