The former Arsenal man had a reasonably successful loan spell at Emirates Stadium last season and it seems the few flashes of past brilliance he left a burning desire to repeat the feat this coming season.
His two goals in seven appearances wasn't spectacular, but it was a much-needed boost to the fans of a club that was in the middle of one of the most frustrating seasons it has had in recent history.
But should Thierry be considering another spell in London or, more to the point, should Arsenal be looking already to bring back the King for another month, or possibly even longer?
Henry was the King of Highbury.
The winger that Arsene Wenger turned into one of the most feared strikers in football scored 226 goals in an Arsenal shirt before heading to Barcelona in search of a Champions League crown.
He was the face of a golden time at Arsenal and is one of the club's most beloved players.
That time, though, is gone and Arsenal are a side that need to look for another hero to carry a ever changing group of youngsters back to the top of the Premier League table.
His return last season on a cold winter's night during an FA Cup game against Leeds United was the dream return for Arsenal fans and for Thierry as the forward scored the wining goal, picking up Alex Song's pass before finishing in trademark style and sliding the ball low into the far corner of the net.
It sent chills down the spine of any football fan watching and Gunners fans began to believe that Henry's return could lead to bigger and better things.
But it didn't, and that's the problem.
Wenger's side may have showed a minimal improvement when Thierry returned, but a loss to Swansea, a goalless draw against Bolton and a 4-0 drubbing from AC Milan in the Champions League indicated that Henry did nothing but mask the growing problems in Wenger's injury hit squad.
At 34, Henry is well past his Premier League best.
It's fine for him to run MLS defenses ragged in a New York Red Bulls jersey, but to come back and play for another month or possibly return permanently once the final 18 months of his Red Bulls contract run out would be nothing but a futile gesture, and a sign that Wenger still hasn't been able to replace the man who helped build the Arsenal managers empire.
Henry hasn't ruled out the possibility of coaching at Arsenal and a player of his stature could bring a great wealth of knowledge, and a moral boost, to the Gunners should they be struggling next January.
But a permanent return to the pitch would could bring a bitter end to a player who's career has been nothing short of spectacular.
Henry should wait until his playing days are over before he returns again to his former kingdom, while Wenger should focus on finding a new King to build around rather then letting his Princes leave just before the take the throne.