Someone who goes by the name ezeliyn on GameFAQs has begun work on an English patch for the PC version of the original Sakura Wars, with a group of three other people.
The project has just gotten started but they have the game displaying their new English text and have a rough translation of the first episode done, along with some cutscenes.
More screenshots can be seen in the relevant link.
Relevant Link: (http://www.gamefaqs.com/boards/561890...-sakura-wars-so-long-my-love/61925087)