According to Lance Bass, the next and maybe final member of the band “One Direction” to go solo will be Harry Styles. He did not give a timeline but said that Harry was itching to leave the band long before Zayn Malik left but since Zayn did it first He felt like He could not immediately leave afterwards. So now He is just waiting for a little time to pass then He will leave. And at that point it is probably a done deal that the band will split up completely and some that are able to go solo, will do so, others will never be heard from again.
— Ryliegh Grier (@rylieghandnash) June 8, 2015