whats with the girl and the robot thing in the begining of every episode what do they represent

It was just a way to get everyone continue watching and wonder what would happen with the girl when it is winter. You know since she will no longer be able to move through winter. I'm sure the robot will be explained in the next season. I didn't really like after story since it was just a bunch of fillers. Although, I do appreciate that it was to stand out the minor characters more in the story.

theres going to be a third season of Clannad?

I would assume so at least. After story was a good show, better than its predecessor in some aspects IMO. But the pacing was off for me. It felt like their are still things that need to be answered. Yes the game pretty much answers what went on, but to anyone who hasn't played the game they will be left feeling cheated.

they probably will to show the different storylines from the game i like after story it was sad and intresting cuz it was similar to real life troubles.