Earlier, we reported that HBO is developing four Game of Thrones spin-off series, but now Deadline reports the network may be considering a fifth.

The seventh and penultimate season of the wildly popular fantasy drama premieres on July 16th. The ensemble cast includes Peter Dinklage, Nikolaj Coster-Waldau, Lena Headey, Emilia Clarke, Aidan Gillen, Kit Harington, Diana Rigg, Sophie Turner, Maisie Williams, and Iain Glen.

On his blog, Game of Thrones author George R.R. Martin revealed there are now five scripts in development at HBO, all of which he terms “prequels.”:

We had four scripts in development when I arrived in LA last week, but by the time I left we had five. We have added a fifth writer to the original four. No, I will not reveal the name here. HBO announced the names of the first four, and will no doubt announce the fifth as well, once his deal has closed. He’s a really terrific addition, however, a great guy and a fine writer, and aside from me and maybe Elio and Linda, I don’t know anyone who knows and loves Westeros as well as he does.”

HBO has not released further details regarding the spin-off series.

What do you think? Are you a Game of Thrones fan? What spin-off show would you like to watch?