Unless there is like several "modes" for that tournament though, it could still be much better...
What I mean is, from screenshots it seems they will only have 3 pokemon each.
While for many gym leaders this is enough to give them their signature/gimmick pokemon, the tougher ones will feel improper. At least to me.
And they might mess up even the 3 they get, by giving them stuff unrelated to their region etc.
I was kind off unsatisfied by the battleground in HGSS and Pt, because some of the choices felt rushed. Gym Leaders/E4 of the same type from HGSS and Pt rematches all have half of their roster the same.
Sure there isn't an enormous abundance of each type to choose from but they could have thought it through better than they did.
Pryce and Candice for example:
Abomasnow/Froslass/Mamoswine/Dewgong/Walrein/Glalie
Abomasnow/Froslass/Mamoswine/Weavile/Glaceon
Ice is probably the most lacking example, but still, instead of putting Glalie AND Froslass on there, instead of the latter, Cloyster would have fit way better (several trainers in his gym use those). And what about Lapras?
Dewgong/Glalie/Lapras/Cloyster/Walrein/Mamoswine
Now the only one they share is Mamoswine which has to stay as it was Pryce' main pokemon in his gym.
Or the Fighting ones for example.
Why does Maylene have a Machamp when Toxicroak is not even in her team?
Why does Chuck have Medicham and Breloom, both the same extras as Maylene, but no Hariyama. And he could have used Heracross too. Which brings me to Bugsy, because he already has a Heracross, but he has plenty of stuff to choose from. Of all the options, Vespiquen.. why not a Shuckle? Its totally Johto, no one uses it, and it's as tough as it gets.
And so on..
Then again, that might be the reason why they will only use 3 each. Since of some types there is as many as 4 gym leaders. Or a really limited group of pokemon to choose from (which is why Morty and Fantina have identical teams bar one pokemon (although they could have still put a Rotom or Spiritomb on Fantinas team, instead of Banette))
At least 4 would have been perfectly doable however.
Yes I know I wrote a random mess of text.