This episode is just setting up the battle in the next episode. I'm not sure why you guys think there will be some self contained plot.
Because the bulbanews story said nothing about BW101. That's why.
Nyanners is love. Nyanners is life.
Moving away from the Sazandora talk, if the writers don't use this episode as an opportunity to finally debut Dihead (which is the final Generation V at this point yet to make an animated appearance, not counting Genesect) I won't be impressed.
I also would like it if Onondo make a 'real' appearance, since the others have been parts of dreams/flashbacks.
Iris' parents, Drayden, and the Elder might be mad at her for not evolving Axew. Her pokemon friends: Pansear, Minccino, Panpour, Deerling, Pidove, and Sandile might either be at Drayden's gym under the care of Drayden, or at her house under the care of her parents, or just still in the wild. I doupt that Iris will leave. And we get to learn about Iris' backstory too.
new info guys :D
Translation by Adamant
"Satoshi and friends are travelling through Iris' home area. Iris' childhood friend Shobu tells them he is raising two Dihead brothers, but the older one isn't feeling well. As Satoshi and friends are eating lunch at Shobu's house, the younger Dihead suddenly rushes in. It appears the older Dihead has evolved into a Sazandora!"
Kairyu text says ""Giving the matriarch a report on their journey. Kairyu puts on a serious face as well."
So Zweilous finally makes its debut in the anime, but it is a debut mitigated another episode in which "Dragon Master" Iris will save the day.
But where in the hell did Shobu come from, and why haven't we seen him at all in any of Iris's childhood flashbacks? The writers seem to be making things up as they go along.