Super Smash Bros. helmsman Masahiro Sakurai has told Nintendo Power (via Nintendo Everything) that the next instalments are a long way off yet.

Satoru Iwata announced Super Smash Bros. for Wii U and 3DS at E3 last year, but with Kid Icarus: Uprising on Sakurai's plate it seems development on the fighting game hasn't even started yet:

I can’t really say anything until things settle down with Kid Icarus… And a lot of it will depend on the team that I end up assembling for Smash Bros. It may take a while, but I think that your patience will be rewarded.

Prepare to have your patience tested, but ultimately rewarded. Hopefully.