A shift in the storyline of Glee will see the characters become increasingly ambitious while McKinley High School will also welcome new students and teachers next season on the Fox/Global series.

Co-creator Ian Brennan, who led a master class at the Banff World Television Festival, would not disclose any names but said the producers are bringing in several ‘awesome’ new characters (some of which are auditioning on MySpace) and high-profile guest stars as the hit musical comedy looks to ‘step up’ in its sophomore season.

‘The larger questions we pose in the second season [relate to] inclusion and belonging…it’s more about can [the glee club] still win and can everyone be included?’ explained Brennan, who is one of the show’s three-member story room that also includes co-creators Ryan Murphy and Brad Falchuk.

The series was the highest-rated new show last season on Fox and Global, prompting a quick second and third season order from the US broadcaster. It will run Tuesday nights this fall at 8 p.m. on Global.