The small print says the lego set is 6+. Both Keychain Groot and Bricktober packs are labelled 6+ where as the guardian ship polybag is 6-12. I'd guess at Keychain Groot just like the Sainsbury Inifinity War DVD promo. I hope it isnt bricktober as it appears to only be in 4 cinemas across the country.
In all the comic con and 2019 set news, it seems like this years Visual Dictionary Exclusive figure has been bypassed as Amazon UK updated the page sometime in the last week with image of the new figure. Its Yellow Lantern Batman!