EPL: United, City and Chelsea have a new manager. I think Chelsea will be closer to the United clubs than last season. City with Pellegrini wants to play more attackking football, but it will take time to implement it. United is having a pretty bad pre-season so far, and Moyes doesn't seem to manage the Rooney situation very well. Chelsea still needs a top striker, Torres and Ba won't be enough.
Spurs are the team to watch next season. They bought Soldado and if Bale doesn't leave they have a very good squad. They still need some decent replacement for Lennon, or maybe they have confidence in Townsend, which made a pretty good impression at QPR on loan last season.
Arsenal has been linked to several players but didn't buy one. Giroud seems to be in top form pre-season, he could be a surprise. First of all they need a real defensive midfielder, but they really need 4-5 good players if they want to compete for the title. Which won't happen.
And also watch Swansea's Bony. I've watched him in the Eredivsie last season and I expected him to go to Arsenal/Spurs. This guy is a class act. Not tall, but very strong and scores very easily.
Liverpool will have a mediocre season. Their defense is average, they need a central defender. I like Coutinho the most, he was outstanding last season, very good player. But the squad is simply not good enough compared to the top clubs.
Bundesliga: 1 Bayern, 2 Dortmund. Bayern already was superior last season and improved their squad with Götze and Thiago.
La Liga: Title will be between Barca and Real as always. Especially because Atletico and Valencia sold their strikers (Falcao, Soldado). I've the feeling Real takes it this year. Don't know how Neymar-Messi will work out, and Barca doesn't have the team work anymore they used to have.
Eredivisie: Ajax top favourite. Would be a huge surprise to me if they don't become champion. PSV sold a lot of key players but is now playing very refreshing football with young players. Bakkali (17) is the most surprising here. They probably won't be consistent enough to compete with Ajax, but I predict them to become second.
Like Ajax, Feyenoord didn't sell key players. But they also didn't buy one. Koeman wants to take the team to the next level, but it doesn' seem to work so far. First match already lost. Still top 3 should be feasible, especially because teams like Vitesse and Twente are in decline and even if Feyenoord are having a bad season, I'd be surprised if they'll end up below those teams in the table.