It didn't help this game any get an official English release, so I wouldn't hold my breath on SaGa 3 getting one.  

Meh, lately, if it's not Final Fantasy or Kingdom Hearts, they can't be arsed to deal with it.  They already handed off Dragon Quest to Nintendo.  They don't even put out a little press release blurb on their site for DQ anymore.  They never even bothered to put anything relating to DQ9 on their site.  Sure, Nintendo handled the majority of the work on promoting the game, but Square Enix's name is still on it.  Not even a link to it there.  So, if a flagship franchise can get ignored so thoroughly like a bastard stepchild, I doubt they'll even spare a thought for SaGa, regardless of them branding it "Final Fantasy" 17 years ago to try and coerce more sales.  Especially after how Unlimited SaGa was received.