Interesting read, they are adding extreme mode fights but nerfing the rest
I’m happy to see that you adventurers are up for a good challenge and ready to get down and dirty with some difficult content!
Of course in addition to supplementing the end-game with extreme battles and other challenging content, we will also reduce the difficulty of the existing high level content at the same time, as Yoshida has mentioned in previously during Letter from the Producer LIVE.
We're always reading and reporting your feedback, but please understand that when we introduce new content and supplement higher-level events, it allows us to ease up on earlier content. (Of course there will be things added in patch 2.1 that isn't focused on end-game.)
We’ll be announcing details about the specific content to be released in the near future, but I wanted to just remind you about the general plan.