The 29-year-old discussed the possibility of rejoining the club where he started as a youth product during a recent interview with Fox Sports Argentina (h/t Calciomercato.com): "When my contract with Manchester City ends (2020), I will return to Argentina, to Independiente."
Moving back to the Superliga Argentina would be a surprise decision from Aguero, even though he will be 32 when his City deal is up. The prolific striker would likely still attract interest from some of Europe's top clubs.
Aguero's scoring record with the Citizens is such that many would feel confident he could continue at the highest level. The prolific No. 10 has become City's all-time leading goalscorer since leaving Atletico Madrid in 2011.
He's still the man the Citizens rely on for cutting edge, even with manager Pep Guardiola giving ample game time to Brazilian attacker Gabriel Jesus this season. Aguero has found the net 30 times in all competitions, helping the Manchester club win the Carabao Cup and top the Premier League by 16 points.
Winning the trophy again would give Aguero three titles since he moved to England, to go with a hat-trick of League Cups.
Yet despite his enduring production, there are still doubts about Aguero's future under Guardiola. The Guardian's Paul Wilson recently noted how it's "not completely unimaginable that Pep Guardiola might leave him out at some point in the near future to allow Gabriel Jesus to take up where he left off before injury."
It doesn't help that City continue to be linked with some of the game's most high-profile strikers.
Kane isn't the only name on City's potential list of targets, though. Mundo Deportivo (h/t Ryan Baldi of Football Whispers, via Sky Sports) reported both City and United will vie with Real Madrid to sign Paris Saint-Germain's Neymar this summer.
Although Aguero has worked well with Jesus at times, it's hard to see him partnering Kane or sharing the limelight with Neymar.
If a City side becoming a juggernaut on Guardiola's watch can win the UEFA Champions League before Aguero's contract expires , it's easier to believe a player with nothing left to win in Europe would go home.