'Game of Thrones' season 8 cast spoilers: Deceased fan-favorite returning? New casting notice surfaces

Daenerys (Emilia Clarke) and Khal Drogo (Jason Momoa) with a child in "Game of Thrones."HBO

Jason Momoa's Khal Drogo has only been in "Game of Thrones" for one season, but he has been one of the favorites and most missed characters on the show. Having won all battles until his untimely death, he was the ultimate Alpha for most fans. While there seem to be no concrete plans of bringing him back, the actor's recent social media posting has people convinced the long-dead Dothraki leader might grace the show one last time before it ends.

Momoa has been sharing Instagram snaps of himself in Belfast with "Game of Thrones" alumni like Kit Harington (Jon Snow), Kristofer Hivju (Tormund), and Liam Cunningham (Sir Davos). He even posed with his Khaleesi, Emilia Clarke, sending the internet wild.

The actor wrote in the caption that he was only there for 24 hours, but some fans think there might be more to it than just a friendly visit. One full day is already long enough to film at least one scene, so there is a possibility he would reprise his chieftain role for a brief season 8 cameo.

However, fans should not get their hopes up. Northern Ireland holds filming for big-budget productions like the new "Star Wars" trilogy and some DC Extended Universe movies, in which Momoa just so happens to star as Aquaman.

In fact, he reunited with "Thrones" showrunners David Benioff and Dan Weiss in Ireland last year while shooting for his upcoming standalone superhero film. He also posted things on Instagram, giving fans hope that he might be back on the show. Clearly, he was not.

Plus, it was not just him who met the "Thrones" cast. "Justice League" co-star Gal Gadot posed with Clarke too, in one of the pictures. If Wonder Woman is in Belfast, that likely means Momoa is there for the DCEU, not the HBO series.