We're really going to find out about ourselves at the end of October all the way until the next international break, we're going to have the following fixtures: Chelsea, home, Capital Cup Liverpool, home, League Dortmund, away, UCL United, away, League Obviously the cup game with Chelsea is the one with the least significance, but all big games nonetheless, after these 4 games we're going to find out how really good we are, and if we're allowed to dream... Hopefully we don't get new injuries, and have Walcott and Cazorla back by then.
Don't care about the Chelsea game, already chalking it up as a loss, if we can beat Liverpool and get draws against Dortmund and United, then i think it's a sign of progress. United is winnable though, they still look very average. Can't see us beating Dortmund in their back yard.
Other than the first sentence about the Chelsea game which i think could go either way i agree with the rest of your post. Dortmund away will be our toughest game of those listed. I'd take a win against Liverpool and draws at Dortmund and Old Trafford.
If all of Arteta, Rosicky, Cazorla and Walcott are back from injury for these games we will be a much stronger side than the effective team we have seen so far. We have been playing well and getting good results but i think we could see a step up in performances with more of our players fit.