Arsenal's target to win the group stage but there are some strong clubs like lens and sevilla. I remember when people called that these clubs as weak clubs in this group but they forgot that if lens and sevilla did have great performance last season.
Lens is always having good history against arsenal but im still doubting sevilla at this moment. It's caused by sevilla never got excellent result against arsenal. There are still 4 match days remaining at this moment.
Arsenal can still win the group stage as long as the club is solving the problems against lens.
With Arsenal success in beating Man City in the EPL, Arteta squad should be able to sweep the remaining four matches with a win. Regarding Lens, I think Arteta squad will take revenge in the next meeting, and ensure they advance to the last 16 as Group B winners. However, if Arsenal fails to do so, I think there is something wrong with their mentality in the UCL.
On the other hand, I don't think Sevilla or PSV can make Arsenal move difficult, although the possibility still exists but I think it is very small. On paper Arsenal can qualify with Lens from group B, and Sevilla has the potential to finish in third place. I think Sevilla has the opportunity to return to the Europa League, because that is where they are considered the kings.
Arsenal been able to make it to the round of 16 or better called the Knock out stage is almost not in doubts, they don't have to win all four games to achieve this but they will have to win all four game if the want to finish as the first team in group B, but I think Arsenal may not get a win from all four remaining game even if they are all team which may not really look too strong enough against arsenal.
Sevilla and PSv would have to battle who will be left behind and not make it to the next round but lens and Arsenal are the most probable team to makes it to the next stage of the league, Arsenal Mey not really find it difficult with PSV and Sevilla but may find it hard with Lens as they have a strong mentality for the UCL and the current position I think is a great boost to their morale currently as they would want to strive not to go back after topping the group.