The NBA world is in the dark about LeBron James' future ... but if the King were to return to Cleveland for a final season, his old teammate tells TMZ Sports it would be "the coolest story." We caught up with Cavs champ Iman Shumpert at LAX this week ... and asked if he wants to see the kid from Akron go home (again) before retiring.

This article originally appeared on Hoops Hype: Iman Shumpert says LeBron James returning to Cleveland would be 'the coolest story'