User blog comment:Mamerge/What if Natsu is END? And Silver is Future Gray?/@comment-5593752-20140410133038/@comment-5840892-20140410204614

My friend suggested something similiar, that Wendy as E.N.D., and it would be Hiro's "ultimate troll move/plot twist for the arc". Don't see it as likely, but, that would be kinda cool.