well we don't know what Sakurai is thinking when making new characters for all we know he would make Tingle a clone of Link
my point being that assuming a character wouldn't get a unique playstyle because we think so doesn't mean diddly
Actually, I made a statement many times that Sakurai has a certain mindset when choosing newcomers for each game. I'll repeat it again just so you can hear. Though he does break this rule a few times, but only to represent series that are under represented, and to add the Retro and WTF Retro.
In Smash 64, his aim was to get the main characters of the main Nintendo series, and an extra character for the two most successful Nintendo franchises, this Luigi and Jigglypuff.
In Melee, he wanted to finish off adding the side but still main characters in the games, whether they be clones or not. Thus we have Peach, Bowser, Falco, Zelda, etc..
He also made the exception of Game and Watch and Ice Climbers as the retro characters.
In Brawl it was mainly about recency.
Thus Lucas, Lucario, Ike, Toon Link, etc... He also made the exemption of Meta Knight and Dedede to add long awaited newcomers for the Kirby series. And just like Melee, he added a retro (Pit, who isn't retro know, but was back then) and a WTF retro, (ROB).
And with the 4 newcomers we have seen so far for SSB4, they all seem to differ from already existing veterans, and the other newcomers.
Villager attacks in a play style, where he bumbles around and "accidentally" fights.
Wii Fit Trainer uses exercises and ups poses to fight.
Mega Man uses the power ups from the robot masters, and basically uses different elements, which can have different status effects, (he can burn, confuse, electric, etc.)
And RosaLuma has the whole Luma gimmick which we don't even know how it will be implemented.
Yeah, I don't believe Sakurai would waste a slot on Toon Zelda just for Tetra.
Personally, I would be fine with any Zelda newcomer, as long as it is not a stand-alone Toon Zelda.
I could understand if they have Tetra and throw in Toon Zelda as a transformation because "why the hell" not, but Toon Zelda by herself just sickens me.