During an interview with Entertainment Weekly, Bloys said they might be coming up with multiple spinoffs of the fantasy drama but currently their sole aim is to focus on its two upcoming seasons.
"I want to put the prequels in context. Even the smallest bit of information is a big deal and I appreciate that. But I wanted to make sure fans know this is a really embryonic process. I haven't even seen outlines.
"The idea is not to do four shows. The bar set by (David Benioff and Dan Weiss) is so high that my hope is to get one show that lives up to it. Also, this is a long-term plan. Our No. 1 goal is the seventh season this summer and getting the eighth season written and aired," Bloys said.
"By the time the final season airs, Dan and David will have been at this for 12 years. Which is an amazing fact. They didn't go and do movies in between seasons, they didn't set anything else up, they put everything - and are putting everything - into this show.
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"In conversations with them, they feel if their name is on the prequels - even in a passive way - it conveys some sort of expectation or responsibility. They want to enjoy the show as fans and don't want to worry about the scripts or production issues."
"Game of Thrones" season 7 premieres in India on Star World, on Tuesday, July 18 at 10 pm.