I think people only care about speculating about characters which really only comes off as grasping at straws when they talk about the wii u version now since it isn't anywhere near confirmed that there is DLC nor linking unlocks.
Thanks for the tip, anyway. o.o
I'm really not sure if it could be described as "grasping straws" at this point. We have roughly a 998 MB of data in limbo for SS3B at the moment, which seems to indicate that a unholy amount of content might be missing (To further clarify, that's almost half of the entire game's data if I'm not mistaken). With this much missing content, anything is game to consider, especially character opportunities (since they would by far be the single most selling point of this series, and would also add the much needed incentive for wanting a Wii U).
My opinion, but I'll be honest: I wouldn't touch the Wii U version of SSB if it was exactly the same as the 3DS variant, and only offered extra stages/game modes as unlocked content. I'd rather have a portable SSB than a higher graphic quality SSB with bells and whistles, because when the day is done characters honestly define this game (Let alone portability is absolutely amazing). It would be the best move Nintendo could make, having characters that can be unlocked and unique to both platforms. The Wii U needs more units sold, and SSB with additional characters could potentially bring more game play and tech.
The one thing I find truly bizarre is why the Wii U version is released later than the 3DS version. From a sales perspective, no sense whatsoever, and the sales of units has been lost because the 3DS is more prevalent. I honestly wonder what Nintendo does have up their sleeve to try and make me consider getting SSB for the Wii U, let alone a Wii U in itself!