it’s not confirmed I don’t think, but RF4S had dual audio so I’m crossing my fingers for RF5 having it too. literally the only thing making me want to play an ares file at some point is getting to hear toshiyuki toyonaga so
There doesn't seem to be much new content in the trailer, though I've spoiled myself by watching a few players play the Japanese version. 
if you get the chance I definitely recommend finishing 4 first! since while they can be played completely independently 5’s premise is based on the ending of 4 so it’s a nice bit of extra lore to have.
I need to finish 4 too, so thanks for putting the recommendation out there! I'm MUCH further off from finishing than I think I realize though.
you should try 4 if you get the chance! it’s a really fun game & i really do recommend it if you’re planning on (or looking into) getting rf5 since like I said in previous posts while you can play any rf game completely independently without lacking anything (except maybe frontier) rf5’s premise builds on context the endgame story of 4 provides.
Alright, thanks for the heads up.
there are 3 difficulty settings in RF4, so the difficulty really depends on what you prefer out of easy / normal / hard! i played on normal the entire way through in all 3 of my playthroughs and found it sufficiently challenging during the story (until i overlevelled my crafting skills and got OP, which is fun in itself imo.) the postgame dungeons are both Very Difficult but like, in a fun way.
