If you were expecting specific transformations for Namekians and Earthlings, you're SOL.For those that care about XV 2 :
Nameks and Humans will get an "awaken" ability, that works like transformation, except it doesn't alter them physically, just changes aura and stats.
And they understand the issue of players outlevelling newcomers and making it impossible to have a steady/growing community without the lack of "middle ground" or any mode that allows players to play "on the same level". They don't have anything for that at the moment but they will be looking into it.
The game will receive a whole year worth of support through patches, dlcs, and free content.
As to why "characters" costumes from original characters can not be changed color wise, it's a licensing issue.
The DLC plan did not originally include Super content, they really wanted to get the current arc in the game in some shape( which will be pre order dlc), the tournament arc was not considered, but it might make an appearance as a final dlc, but currently unlikely.
They also said they tried their best to balance the original characters to make it fun despite playing "weaker" characters canon wise.
There will be 3 times more costume parts, and they added more faces / hair / body types for creation.
You can important your costumes from XV 1.
EDIT: Additional stuff:
Yes and no. It won't be a "proper" local multiplayer, but it's improved from XV1, it has several stages. It disables the camera effects still, and this induces some visual glitches with the effect, but what I played was a demo.Any idea if we'll get a full local multiplayer mode this time around? Only being able to locally fight on the tournament stage was a real letdown in XV1.
You won't be able to play on all the stages in local. Basically if it's too big / has lots of obstacles, it won't be playable. No split screen, so anything that hide a player from the single camera angle is out.