There's a LayerFS patch for the leaked ROM translating the menus.
If you want the story, you can enable furigana and read it in Japanese with audio on,
or wait until May for the official translation by 8-4 which may or may not be a disaster like the Fates one.
But you really should learn Japanese, especially if you're interested with the games Kaga worked on after quitting Fire Emblem / Nintendo, or SRPGs in general (especially stuff by Flight-Plan).
Not all games are getting translated to English, and the ones that are are getting disrespectful meme translations so much that many sites (like kotaku and their ilk) want it to be the norm (as shown by hate mobs against the "too accurate" Persona 5, and the Great Ace Attorney fan-translation).