A former school bus driver in New Hampshire and Maine will wait until early next year to learn how long he’ll spend in prison for sexually exploiting children on his bus. John Allen Wright, who pleaded guilty in September, had been scheduled for sentencing last week, but Foster’s Daily Democrat, reports that the hearing has been postponed until February. Wright, who lived in Milton, worked as a bus driver for special needs children. He was arrested in September 2011 and charged with filming child pornography on the bus using cameras hidden in glasses and pens. Officials have said he faces prison time of up to 160 years.