User blog comment:FairyRaven/Fairy Tail Chapter 424: Avatar, Review and Commentary/@comment-24.90.189.198-20150316160334/@comment-7418318-20150316161526

Frosch died in the other timeline. That timeline no longer exists (or isn't connected to the main one at least).

In the currnet timeline things are different, which means that Frosch might die at another date or not die at all.