The 5th game is being made right now in Japan.

The 3rd game will be released in Japan a month before the US version. Like the last 2 Ace Attorney JP re-releases it will have the English Language option with it as well. I own the US Ace Attorney 1 and the Japanese version of 'Justice for All', which did have the full english text. I might import the 3rd one too.

Too bad Gyakuten Saiban 4 didn't have English, I would have picked that up.