One Direction bosses fear the band will split next year following Zayn Malik's shock decision to quit.
Even though the group's fifth album is expected to be released as intended in time for Christmas, it is being said Horan and Styles are being groomed for solo success, reported Daily Star.
"The album is a guarantee but next year is all up in the air. Harry and Niall are already being groomed for solo success and both could have huge solo careers if they wanted," a source said.