There’s no real Pein
Could this be the meaning of the code?
Apparently, according to a spoiler I read, and to another Naruto fan I talked with, this is what the code tells. This could probably real. 
First, the code must be related to Pein. That’s the main reason why Jiraiya fought him although he knew it from the start that he can’t beat him. His purpose is to discover secrets that covers Pein. And why did he send the code to Tsunade? Maybe Tsunade knows better. This could be a good start for Tsunade to discover more truth about Pein and Akatsuki, etc.
But if there’s no real Pein, then who controls those six Peins Jiraiya fought before? Could be Madara? Who else is hiding? What is this? Or maybe, the real Pein must still be hiding… Is Nagato still alive? Could he be the Pein we already saw? Pein is controlling him? You’re confused now, huh?
Anyway, Pein and Konan is moving to Konoha… according to source.

Your #1 Naruto blog.