I mean, KH1FM brought the new Beginner mode and replaced Expert mode with Proud mode. KH2FM brought Critical mode, will KH3 bring something new?

Doubt it.

I don't think so...but if they make a new one it's gonna be like Extreme mode

maybe one mode for 'always level 1' or maybe 'no healing' mode.. well that's crazy.

Um...what else would there be to add? I mean, Beginner, Standard/Normal, Proud/Hard, and Critical are basically all that you need for a fun time and a good challenge, so I can't imagine any other level of difficulty. The only thing I can think of is a Super-Easy mode or something like that, but that would ridiculous. Maybe a Cinematic or "Special" mode where you have to complete each boss fight or certain parts of the game in the most epic way possible, setting certain criteria or special rules that only a person with OCD could come up with.....but I kind of already do that in my own playthroughs, so that would be useless too.

I mean, KH1FM brought the new Beginner mode and replaced Expert mode with Proud mode. KH2FM brought Critical mode, will KH3 bring something new?

Personally, I want them to introduce an adjustable difficulty setting: you can scale how much damage you receive/give, how quickly you level, when you get abilities, etc. This could potentially add alot of replayability to the game... Cheats would work in a similar fashion.I hope that they do more than just scale the damage output at high difficulty levels, and rather make enemies more brutal and blood thirsty, for instance.

There are enough modes already, unless there would be an mode where you get killed by first heartless of the game just by it hitting once

*looks at the games with new modes you sited, sees that they are FM versions* I think if there is going to be a new game mode it will come with the FM version or FM DLC. What ever Square chooses to makes.

Don't forget that KH3 could also introduce DLC that way we don't have to buy the same game twice.  So they could release a new mode through DLC.

Kingdom Mode

I think it'll just be critical again.  I think they only updated it cause it sounds flashier 

How much harder could it possibly get? 

How much harder could it possibly get? 

As long as you focus on leveling up, Critical is hardly noticeably harder than Proud, in my opinion. It's actually pretty easy once you get the hang of it...Not counting lvl 1 runs, it can get a lot harder, trust me.