Who has Arteta's phone number? I have an advice for him. If he doesn't want Real Madrid to come back, which will be very difficult for Real Madrid, he shouldn't play defensive game. He should order the boys to come out and play normal match. He shouldn't also be too careful. With the quality of Arsenal players, Real Madrid will do absolutely nothing against them, but if they become defensive, fearful and too careful, they'll recieve 2 goals even in the first half.
The best form of defence is attack. Immediately the match starts, Arsenal should rush them and see if they can get 1 goal more and end the day.
I don't really think so because defending will only decrease Arsenal's effectiveness and it's a move that could make their situation worse.
I think Arteta will still do the same scheme where the midfield will still be focused with Rice who played very well in the first leg.
In addition, with the current conditions where Madrid are behind on aggregate, it is certain that they will emphasize more even though they realize it is a little extreme for Madrid at this time who are in performance problems but it is the only way they can make a difference and make a comeback if the goal is still eyeing the semi-finals.
Madrid are currently on the back foot with both La Liga and the Champions League in trouble due to their unimpressive form but Madrid are Madrid and they always do the unexpected to make the impossible happen.