Hewitt is great player, he was unlucky with injuries. Tipsy played great, it was a shame that they played in 1st round.
Federer will play in the final, then anything is possible. He plays great tennis here. 9 straight SF here. From 2004 to 2012. Not going anywhere.
I expect him to reach the SF but could easily see him losing to Murray there. Also don't see a way for him to beat Djokovic in the final.