The Arsenal boss brushed aside speculation surrounding his whereabouts next season to publicly post Walcott's credentials to play for AND skipper the national team in Russia.
Arsene Wenger is hoping Gareth Southgate will return to Selhurst Park tomorrow night to run the rule over a player he overlooked for England's last two games against Germany and Lithuania.
That was a decision which surprised the Frenchman, even though competition for England places – especially up front – is more fierce than it has been for some time.
Wenger expects that that exclusion will fire up Walcott to win back his England place.
Arsene Wenger was surprised Theo Walcott was left out of the last England squad
Wenger believes Walcott can be England's hero next year
"I was surprised he was left out by England, and I think he could go (to the World Cup finals)next year," the manager insisted.
"It is true there is now more competition for England going forward. You have a young generation with [Jesse] Lingard and [Marcus] Rashford coming up, but Walcott has the quality."
Wenger said that Walcott had responded well to the disappointment of missing out on two World Cups since his first appearance in 2006 and also returning from a long lay off through injury.
"He has played wide since the start of the season and in 20 games he has scored 10 goals in the Premier League. For a wide player that’s quite positive," he said.
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Wenger also claimed that Walcott was now revealing leadership qualities that England could well benefit from now that Wayne Rooney's reign with the captain's armband appears over.
"He is quite a focused, positive and determined guy," said the manager. "He doesn’t compromise with what he thinks is important. He speaks his mind."
Does he have the qualities to captain England?
"I don't think that's his target at the moment, but I think if you can captain a club team you can captain the national team, it’s similar.
Wenger believes Walcott has the quality to compete with Jesse Lingard and Marcus Rashford
"I don’t know what really goes on in the dressing room. When we meet in the morning in the dressing room I am not always there when they talk. But I know when I have meetings with players he speaks his mind."
In the meantime, Wenger will be without both his two first choice goalkeepers as well as team captain Laurent Koscielny for tomorrow's match.
Emiliano Martinez will be in goal after Wenger confirmed that both Petr Cech and David Ospina remain injured.
Koscielny is, however, is expected to be fit to play in the FA Cup semi-final against Manchester City later this month.