MONTREAL—Canadiens fans celebrating the team’s overtime win in Game 4 of the Stanley Cup final series against the Tampa Bay Lightning say they’re hopeful the team can come back. In addition to the usual cheers, fans outside Montreal’s Bell Centre arena had a new one on Monday night, “Habs in seven!” The Canadiens now trail the Lightning 3-1 in the team’s first appearance in the final since 1993—the same year Montreal won its last Stanley Cup. Many fans watching the game at an outdoor viewing event in Montreal’s Place des Festivals, as well as those outside the Bell Centre arena, where large crowds have gathered during previous playoff games, say they’ve never lost faith. “If we didn’t have hope we wouldn’t be here,” said Luc Doiron, at the city-organized outdoor viewing event, after the second period, when the game was tied 1-1. Before the game, fans said if the Canadiens …