England paceman Broad got into the record books by scalping Warner for the seventh time in the fifth and final Ashes. Langer believes Warner allowed Broad to "get into his head" during his Ashes series struggles.
"I've learned over a long period you never write off champion players. It doesn't matter what sport, you never write off champion players," Cricket.com.au quoted Langer as saying.
"They tend to come good, don't they? He's had a tough series, no doubt about that, but he's also a champion player so usually with champion players they get a bit more time to come good," he added.
England leveled the series 2-2 by defeating Australia by 135-run in the fifth Ashes. Warner became the lowest scoring opening batsman to bat in every innings of a 5 match series.
Although Langer agreed that things did not go as per their plan, he is confident of Warner making a comeback.
"This series, it didn't go to plan, but he's seen how successful he's been and the impact he can have on Australian cricket teams winning so I'm confident he'll come good. Actually, I'm hopeful he comes good," Langer said.
Former Aussie skipper Ricky Ponting also named Warner among other Aussie players as one of the certainties for the first Test at the Gabba against Pakistan, starting November 12.
"Warner's going to be a lock," Ponting told cricket.com.au. "I don't care if he gets another duck in the second innings of this Test match, he's going to be a lock for the Australian summer.
"Marnus is an absolute lock. Smith's a lock," Ponting was quoted as saying by www.cricket.com.au.