It is tough and unpredictable league. everyone can beat anyone. Arsenal have many injured players. The likes of cazorla, podolski, walcott, AOC still injured but they can manage to survive and become top of the league till now.
ManUtd, ManCity, and Chelsea have new coach and tottenham have 100mil squad but it takes time for new coaches and new players to adjust. They are still contender especially Mancity and chelsea.
my predict will be
Arsenal
Manchester City
Chelsea
Tottenham
Liverpool
Manchester United