That was the prediction of Peter Houston today as he looked ahead to the massive Group A showdown in Cardiff tomorrow night.
The national team assistant boss has been delighted to see Hoops players excelling at home and abroad in recent weeks.
Neil Lennon's players racked up an historic win over Spartak Moscow away in Russia in the Champions League group stages last week. And on Sunday they went top of the SPL with a win over Hearts at Parkhead.
Dundee United boss Houston believes Scott Brown, James Forrest and Charlie Mulgrew can all play key roles in the meeting with Wales. Mulgrew is fit despite suffering a head knock and being substituted in the 1-0 victory over Hearts at the weekend.
Houston said: "Charlie came in and played against Slovenia and did well, but then missed the last two games through injury. We've missed his quality and we're glad he's recovered.
"Charlie would probably have been involved in the last two games, but he withdrew because of injury, which was disappointing.
"Versatility is a big thing in football now. If you have a player who can change position during the course of a game without having to make a substitution, it's great.
"Charlie has played wide left at Celtic, left-back and centre-back. It's a talented player who can do that.
He added: "James Forrest is going to be a really top player. For one so young, he's played for Scotland already and played in Champions League matches for Celtic.
"He looks after himself and he's a down-to-earth lad. He also has that magical thing called pace, he can go by people and dribble with the ball at his feet using his close control.
"If he stays free of injury and keeps his form, he could be an international player for years and years to come.
"He's just signed a new contract at Celtic which shows you he's settled and in a happy place.
"You talk about players winning 50 caps and getting into the Hall of Fame.
"James should easily hit that target because he's so young, provided he maintains the standard of play he's producing just now.
"He is a great crosser of the ball and a great finisher and he's got pace, all the attributes you need for the position he plays in.
"Plus, he has a sensible head on his shoulders, which is huge. He isn't a boy who gets carried away with any bit of success.
"He works hard in games and isn't frightened to track back and win the ball back. He has great talent and, over the next seven, eight, nine or ten years, he could be a big player for Scotland.
Houston also feels Brown, who missed the games against Serbia and Macedonia with a hip injury last month, will have a major role to play for Scotland if he is fit to play against Wales.
He said: "If Scotty had been fit for the last two World Cup qualifiers, it's likely he would have started those games.
"That's how big a miss he has been and how highly he's thought of. He is an automatic pick for the middle of the park."
