We will be much less reliant on a single player with the signings we have bought, we have also addressed the squad depth issues on the wing that have often crippled us a bit.
Arsenal have bought a player to upgrade an area they are Lready good in, they have not addressed any of the issue they had last season.
United will probably be a bit better with Fellini, however it will still mostly be saf's team and it is yet to be seen if moyes can get them to perform the same way over the season.
City are decent still, don't know too much about their signings myself.
All in all I am pretty confident that we will end in the top four this season, if everything clicks maybe even a title challenge.