Well maybe there could be more "maturity" in aspects similar to colosseum/XD's "shadow pokemon", or more developed/bad "evil" teams, but I don't think it should go as far as real, permanent, warfare violence in pokemon. That would be too much, even if it is more realistic. Plus either way it would never actually be created, I don't think.
I have 2 Friend codes I use about equally. One is 4055-3723-1345 and the other is 0576 3520 6954. I'll try to mention which one to look for when needed, if I don't then ask.
I try to train pokemon with the best natures and IVs, but generally don't breed for IVs and occasionally use a pokemon that could have a better nature out of laziness (on the other hand I have reset or recaught the same species 20+ times to get the best nature and decent IVs sometimes). I somewhat do EV training, but don't calculate it out so it's perfect, just rely on the chart in the super training thing.