I visit quite frequently, but won't be there at that time.
As far as city scapes goes, it's not really my thing, but I do a lot of city walking and looking for tighter shots.
Personally, the walk I really like is walking from Roppongi to Shinjuku quite a bit, via Omotesando. Some rather interesting buildings.
Though generally, you can pick pretty much anywhere you like, and you'll probably find something interesting. My suggestion would be don't necessarily avoid the touristy places, but at the same time, don't be afraid to go off map too.
Goodluck Chris, and enjoy.