Let's get over with this now! Arsenal has no chance of winning the Champions League. That'll be considered an expensive joke. They should focus on winning the Premier League this season and not prioritizing a competition they know quite well they can't win.
They've had a remarkable season last season, so I expect them to use that energy and motivation towards getting the Premier League job done.
Honestly I wouldn't call it as "no chance". But it is the obvious truth that their chance is lower compared to teams like Manchester City for example. Maybe someone can say that they beat Manchester City in the Premier League once a short time ago. But it doesn't mean that they will surely do it in a Champions League finale also.
But if we talk about Arsenal's chance to reach the finale I would say why not. Because Inter did it last season and made us watch a really good game at the same time.
Why wouldn't it be Arsenal in their place this time? They need to keep their concentration high starting with the group stage.