A first all-English since 1972 remains a possibility with Unai Emery's team and London rivals Chelsea kept apart. Just behind, Manchester United and Chelsea are sniffing around on 58 and 57 points, respectively.
Their fixture list does not become any easier after that, either, with an away game against United coming just four days after their final meeting with Spurs. Spurs' victors in the world's oldest football competition Crystal Palace are facing Watford in the Quarter-Finals.
He won every major honour available during his 11 years as a Chelsea player, including the Europa League in 2013, and joined Arsenal two years later.
Benfica, who dropped down from the UCL after finishing third behind Bayern Munich and AFC Ajax in their Champions League group, will face Bundesliga outfit Eintracht Frankfurt who sent Serie A giants Inter Milan packing in the Round of 16.
Kalidou Koulibaly salutes the Napoli fans
Meanwhile, Manchester United, Liverpool, Manchester City and Tottenham Hotspur have made it to the quarter-finals of the Champions League.
Aubameyang had not scored in the competition since September so breaking his duck to get Arsenal up and running was timely, then he struck again late on for his sixth brace of the season in all competitions.
The African star opened the scoring after five minutes, with a close range finish from an Aaron Ramsey's cutback, before sealing the Gunners' place in the Europa League quarter-finals in the 72nd minute.
While praising current boss Emery, Koscielny has appeared to take a dig at his former manager Arsene Wenger's tactics and mentality. The Blues will meet Slavia Prague, who sensationally dumped Sevilla out the competition in extra time on Thursday night, with the second leg at Stamford Bridge.