It seems the ever-popular TV adaption of George R.R. Martin's Game of Thrones fantasy series and the remaining books will potentially have some important discrepancies from each other, according to the writer.

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Game of Thrones Season 8: 39 New Shots from the Latest Trailer 39 IMAGES

In an interview with Entertainment Weekly , Martin explains that he actually doesn't yet know how the show will end."I haven't read the [final-season] scripts and haven't been able to visit the set because I've been working on Winds," Martin revealed. "I know some of the things. But there's a lot of minor-character [arcs] they'll be coming up with on their own. And, of course, they passed me several years ago. There may be important discrepancies."The author also stated he has mixed feelings about the show coming to an end and how it overtook the book series timeline."It's been an incredible ride," Martin told EW. "And almost all of it has been great. Obviously, I wished I finished these books sooner so the show hadn't gotten ahead of me. I never anticipated that.""It's the end for a lot of people. It's not the end for me. I'm still deeply in it. I better live a long time because I have a lot of work left to do."Game of Thrones showrunner Dan Weiss also explained that the author provided a rough outline of his future books years ago and originally Martin contributed one script per season to the series, but he decided to stop after season four to focus on the books. The showrunners have agreed to keep what isn't in line with the books a secret so as not to spoil things for people when they come to read the finished works.Regardless of what actually happens in the final series there are plenty of fan theories , including mystery characters which have surfaced after the release of season 8's trailer. We do know that it will include the longest consecutive battle sequence ever involving these characters and will premiere on HBO in April.

Hope Corrigan is an Australian freelance writer for IGN. You can follow her on Twitter and Instagram