Isn't it still just a wee bit early to decide on a team? We don't know enough about these Pokemon to make any final decisions on whether they'll be good in-game or competitively. I'm personally going to wait before deciding completely on which Pokemon I'm using, and even then my team might change.
I wouldn't say revamped. It's not like Slowpoke will suddenly become the fastest Pokemon. Still, you don't know their stats, and Pokemon fit into categories for battling based on their stats and moves: walls, Physical/Special sweepers, and so on. That information isn't fully revealed yet, and so lots of people have the opinion to wait for more information.
*shrugs*
Hopefully some clauses will be put in place so that triple battles can't be won in cheap ways, like Explosion built up with Helping Hand. Because it really is cheap to win that way. Maybe there'll be an option to go without them in Wi-Fi. As for in-game, they might be rare, happening only a few times as introduction to the idea.