User blog comment:TheHelixYT/No Inkling For Smash 4/@comment-8182065-20150707220531

Inklings would be clones of Mii Gunners if anything really... Whether they're clones, semi-clones, or completely original characters, they have a possibility of becoming DLC (Roy is essentially a half-clone of Marth, and he got a shot in Smash 4. Same goes for Lucas).

I don't even have a Wii U, but I definitely know that they have a wide range of tools to use for attacks and such in Smash, so Inkling coming in as a clone is very unlikely.

Also, better reasoning for why Inkling won't make it as DLC would've been more on the idea that the Mii Gunners already have a Splatoon costume, and would look similar to an actual Inkling. Sure it's not paint that's being shot all over the place, but still very identical.