The list of new pokemon included in the game have been datamined. As I told you all already, it is the bare minimum.
In your face, Bguy7! It never mattered that chunsoft makes these games, that doesn't mean they will not take the chance to be lazy when the opportunity presents itself! And you...
I'm certain Lucario will be the only post gen-4 new line added. It was sort of in the original game, and it can mega evolve. If we look at just gen 1-3, that already decreases the amount of pokémon capable of mega evolution being available compared to the full roster, so that is all the more...
By now we know that when it comes to the people who make the pokémon games, If they have any excuse to be lazy, they will take it. Just look at ORAS not implementing the improvements of Emerald. Same case here.
This. They should have remade the game with the small change that ALL currently released pokemon are included in it. If that was the case, I would have bought a switch just to play this. But right now, I am doubtful.
The only reason to not evolve them is to let them learn a cool move earlier. Since this is a case by case basis, it's best to look up the move learn information of the pokémon in question in the pokédex to make a good decision. As for bringing out their full potential, well that is what EV...