Like I said, the DLC for Smash is just too much. It only makes sense to release a ''full edition'', and it will be a missed chance to not have one.
The only sense it would make is if it was for a cash grab. Last I checked, unless there's a significant improvement that can be made with releasing a new version of the game, there won't be a GOTY edition.
The only case where I could see one happening is if the NX isn't backwards compatible, and that is assuming that it's the Wii U's successor and not another thing entirely.