I hope he gets a draw with 2 early round tests, but avoids Nadal/Tsonga until at least the semis. If he gets past all of them, I think he can win the title.
Murray is the other form player/'man to beat' on grass, and I'm curious to see his draw - he could potentially have to face 3 of the big 4 as well (back to back), and a match against Nadal might be interesting.
For each of the Top 4, this is what they might need to be most wary of:
Djokovic: Federer/Murray = dangerous in the later stages of the tournament
Murray: has to try not to beat himself/ watch out for Nadal/ big servers
Federer: will want to avoid Nadal/Tsonga
Nadal: his enemy will be the first week of the Championships (if he makes it through that, he's in the running)