During a recent interview, Gong Yoo said, "I told director Yeon Sang Ho that my character Suk Woo is probably living somewhere as a zombie, but then the director told me that Suk Woo already died by breaking his neck when he jumped off the train." 

With that in mind, Gong Yoo continued, "So then I recommended that the sequel is made from Ma Dong Seok's point of view since Ma Dong Seok's character is alive as a zombie." 

What do you think of Gong Yoo's idea for 'Train to Busan 2'?