One day ago, the 3DS developper Plutoo announced on this twitter that there will be a new 3DS homebrew exploit based on SmileBASIC. Users can get this game on eshop. But it will only support JAP and UAS version.
According to tthe comments behind this twitter, this new 3DS homebrew exploit is primary and supports unupdated JAP, unupdated USA, and updated USA. Plutoo says that the new exploit will be released about 1-2 weeks. Once it is launched, we will update the news at the first time.