Well that's probably has to do with the new way the color shop works in Disgaea 5.
Instead of being able to pick from selectable presets like previous games, Disgaea 5 would be the first time characters can be recolored by individual layers.
EDIT - To hell with it. Here is a big list of confirmed info that I know about Disgaea 5.
The character world is a Sphere-Grid like game board where you can get random stat boosts depending on where you land and can even buy aptitude points to get to 300% quicker.
There is an innocent farm where the innocents level up as you go fight on maps and can even spawn new innocents if there are 2 in there, much like Pokemon's Day Care.
New magichange mechanics which allows 2 monsters to combine into a single weapon for even greater stats. Also characters can now equip sub weapons, meaning you can put both a sword and an axe on a character so you can use both skill sets. If you use an axe skill it will use the axe's stats but if the sword is your primary weapon that will determine your overall attack stats when doing normal attacks.
Star is now an element and characters (enemies too) have weapon resistance. Staff resistance seems to be linked to staff skills and not only staff melee hit. There is also Armor mastery which reduces the incoming damage. It raises by taking hits.
New forgery where you can use materials to make new weapons or strengthen them.
Monsters can now throw units
There's the revenge meter that if you kill a unit in revenge mode you get a stat crystal that will boost one stat. The stat benefit isn't trivial. at level 40 you get about 20-25 stat bonus. (80-100 to hp and mp). Giving 300-400 mp to a low mp unit changes a lot of things
There's a cooking shop where you can get buffs for the next fight
You do not need to reincarnate your units to upgrade them, they upgrade by themselves when they reach appropriate level.
Evilities are a bit special this time, you get your class / character specific evility and can buy generic and character / class specific evilities from the skill shop. Each evility has a set cost. You start with 5 evility slot, each evility will consume its cost of slots. You get one free slot at lv 50 and can get more through charaworld.
That is all....for now.