Shin'en Multimedia, a development studio that's already shown plenty of enthusiasm for Nintendo platforms, has confirmed that Nano Assault EX is on the way to the 3DS eShop in both North America and Europe. It's less than a year since Nano Assault arrived as a retail title — though it wasn't released in Europe — and we thought is was rather good in our Nano Assault review.

When announcing the eShop follow-up on Twitter, the developer's wording was slightly vague in terms of the content that this download will include.

'Nano Assault EX' is coming to the 3DS eShop (EU+US) ! Based on the original release but with new game modes & options.. more info soon!

Whether this will repeat content from the retail title with additional modes and features, or simply carry across the concept but with all-new levels isn't completely clear. In any case, this will certainly be one to watch on the eShop.