after reading the faq i had this q:

what would be the correct order one would play its a hard llife and a resource ko card mentioned in the last paragraph?

your opponent plays flying kick from row.

you play a replacement effect on the chain.
you let the replace resolve.
after its resolution you play its a hard life targetting the flying kick effect, since there is now a flying kick in the ko pile which is a different object than the one he played in his row.

that should be about right but someone will likely come by to clean up my language.

You got me?

That looks right to me.

So by the same reasoning, if I play Future Friends from my resource row and manage to replace it in response, it'd give +2 Def?

Future Friends:
Target Team Superman attacker or defender you control gets +1 DEF this attack and an additional +1 DEF for each other Future Friends in your resource row and KO’d pile.

That seems to be what the FAQ indicates.

There will be a whole new world of jank thanks to cards like these and Jean Grey, Red.

Play 2-3 at once from the resource row, replace them all, and watch the hilarity ensue (yes it has already been mentioned with Path of Destruction).

Yep, those are both accurate.

Okay, changing zones vs. flipping a resource back down:

I play Future Friends from my resource row.
I then chain Emma Frost's, Friend or Foe ability to turn that copy of Future Friends down. Emma's ability resolves.
I flip that Future Friends back up.

FF#2
FF#1 (the first time I flipped it.)

When FF#1 resolves, will it count FF#2 as a different copy and give +2 def (which would be +3 def for the whole chain)? i.e. Does flipping it back down give me the same result as having it change zones?

It would be the same object, and thus wouldn't "count itself" as a different card.