When did that rumor surface? From what I read they wanted seven to be the last season, and only go to eight if need be.
Honestly, episode ten felt like it would've been the perfect episode nine. Nothing really happened in the ninth episode besides Stannis letting his daughter burn, and episode ten just left way too many loose ends. We don't know if Theon and Sansa survived the jump, we don't know if Brienne the bitch killed Stannis, we don't know if Danny is fixing to be kidnapped by the Dathraki again, we don't know if Marcella is dead for sure, we don't know what fully happened with Arya, and we don't know of the Queen and her brother's fate. And they didn't even show Bran the entire season, not like that matters besides Hodor though.