After failing to secure the league title last season as new Rivals Manchester City outplayed them and finished top of the table last season, the club has reacted well by investing hugely to boost the squad this summer. Arsenal now have another chance to compete for the league and every silverware next season. As Kai Harvertz has said that he is looking forward to winning a trophy with Arsenal next season.
TBH Arsenal are now looking like a purposeful club again, i love the manner in which they are going about their transfer business this summer, they are buying like a team that has the ambition of winning the EPL, this kind of mood has been missing around Arsenal for many years, but it was reignited after they came close to winning the league last season.
Having said that, whilst i don't think Arsenal are going to win the EPL next season, i think they are getting closer to winning it, and if they continue with this same drive and vision, they'll be champions again, sooner rather than later.