Bisharp is more then likely Georgia's since she is in the competition. The Excadrill is Iris's. And the Simisage is not Cilan it's Akkie.
From the preview it seems the competitors are a bit more detailed then the ones in Nimbasa Town Don George tour. Liking that we are seeing the major rivals yet again and have evolved pokemon. The Don tournament is definitely one of the things I love about BW. Hopefully this time it doesn't seem so rushed though. Loving the Scraggy battle development finally. This may lead into so episodes on developing Focus Blast later on as well.