Two months ago, Natsume announced their plans to localise the 3DS title River City: Rival Showdown on the Nintendo 3DS. The title, known as Downtown Nekketsu Monogatari SP in Japan, is set to be released this Autumn and is part of the River City series of games.
Nintendo World Report has recorded some off-screen footage of the title, and you can check it out below:

Meh. I don’t expect much from Natsume nowadays.