we dont have many choices for Gu Long's adaptation, so far there are only 3 adaptations confirmed for future
*Year 2015-2018: Xiao Shi Yilang/the eleventh son (2015) Detectives and Doctors (Lu Xiao Feng 2015) Sword Master 2016 (The Third Master's Sword) The Flying of Daggers 2017 (xiao li fei dao the fifth novel) The Lost Swordship 2018 (Lingering Fragrance in a Rain of Swords) Border Town Prodigal (xiaoli feidao the second novel)
*Coming soon 2019: The Legendary Siblings / The handsome siblings(juedai shuangjiao) Happy Heroes (Growing Pains) The Legend of Chu Liuxiang
According to the slip, it's about Li Xunhuan, not his grandson. Production will start in June and will last for 5 months.
The series about Li Xunhuan's grandson ought to be on Li Huai (李壞) which is Flying Daggers, the Flying Daggers Strike Again (飛刀，又見飛刀). The original Gu Long book is a short novella, not really enough to shoot a TV series, so there must have been plenty of extrapolation.
using google translate , i found out that Wulin Waishi is also one of the work that will be remake. could someone who understand chinese language help me find any information about it (who is the actor/actress, when will be released, how many episodes, producer, etc)? maybe on weibo or google