Another psychopath joins the battle! XD
Point taken, but it's a very popular Nintendo series, so it was bound to happen at some point, while Harvest Moon is a third-party sim that is really similar to AC, so it's less likely than that Psycho Villager.
Except that the task of turning
Harvest Moon characters into warriors was already done, by the game
Rune Factory: A Fantasy Harvest Moon. That game added a ton of potential moves, including magic and weapons, and fleshed out exactly how the farm implements would actually work in battle.
While it may be third-party, almost all of the
Harvest Moon games have been on Nintendo consoles (seriously, I can think of only two original titles for other systems). The series has a huge history with Nintendo, and has had a game for every Nintendo system since the SNES (including handhelds) with the exception of the Wii U.
What's more, the history of the
Rune Factory sub-series is even more interesting. When creating an anniversary celebration for the series, Yashimoto Hirofumi brought his concept to Satoru Iwata, not the head of Neverland, nor any of the
Harvest Moon developers at Natsume (that gives you an idea of just how close
Harvest Moon is to Nintendo). Neverland, the company that produced the series, filed for bankruptcy and closed. While the
Rune Factory development team was hired by Marvelous AQL, the property rights for the series are in a more ambiguous status, as the team has thus far only worked on the game
Forbidden Manga, not a new
Rune Factory title. If the property rights were auctioned off as is usual for a bankrupt and closing company, it is possible that they were acquired by Nintendo.
I admit, this is all thoughts I developed to corroborate the leak I most want to be true, but a representative from
Rune Factory would make a lot of sense to represent
Harvest Moon as a whole, as the games are just
Harvest Moon with weapons. And the series has such a huge history with Nintendo that, if it were first party, it would have been guaranteed a spot probably in
Brawl.