Review of Train to Busan

I'm really happy with this thriller/action/horror zombie Korean flick Train to Busan, its really different from Hollywood zombie movie that we normally used to, with it new style of terrorizing the audience you can feel its thrill from beginning until the end. Unlike in American counterpart where the scare factor are heavily dependent on graphics ( blowing zombies brains, victims eaten alive with their insides hanging out on their tummy , explosion , etc) TTB zombies looks like just wounded people with seizure and cataract (but they bites!) which is refreshing. Actually Its funny that even some of them are already infected, they still good looking! I don't know if that's a good thing or a biggest flaw for a zombie flick. After I watched it, I suddenly have urge to binge on zombie themed movies. So I learned that TTB MIGHT similar to quarantine where people trap inside airplane instead! (kind of) and there's a kid too. Is possible to have a sequel "Plane to Busan"? Because I feel we need a closure for this wonderfully made zombie thriller. If you're zombie fan you certainly don't want to miss this masterpiece!