I can say that Arsenal will win other matches, but in the case of Sevilla I am not sure, they are quite a strong opponent, despite the fact that they will play their last match before the Champions League against Real Madrid. I'm sure they will be able to give their best in both matches and do it successfully
Arsenal and Sevilla are competitive this season, they are favorites to qualify from the Champions league group B because they're fierce in performance and have the necessary qualities to explore in games. Perhaps Arsenal currently second with 3 points while Sevilla have 2 points, the team topping is Lens with 4 points rank, though the resulrs is shocking. This is UCL and there's alot of things that need to comprehended when it comes to UCL games, no room to underrated any team, results doesn't go according to plans, rather it moves to were it feels is suited.
That doesn't mean I underestimate Sevilla, but it looks like Sevilla will only to finish in third place. Because that way, Sevilla will have the opportunity to return to playing in the Europa League, at least Sevilla is also used to with results like that. After all, basically at this moment Lens also not have good results in Ligue 1 but in reality, Lens managed to become temporary top in group B standings. Obviously, it was a surprise, and maybe only Arsenal will big effort to take over the top spot, while for Sevilla I'm not sure.
I think Sevilla's goal is to finish third in the points table. Because they know very well that it is not possible for them to do much better in the Champions League with this squad. So they will try to perform well in Europa League only this time like last season. The performance of this team is not good in La liga too. But I have considerable doubt that Sevilla can finish third in the table. PSV is currently at the bottom of the table. But this team is strong enough. My guess is Arsenal and PSV will qualify for the round of 16. Lens and Sevilla will be third and fourth in the table.