When does The Journey of Allen Strange return?

The Journey of Allen Strange aired on Nickelodeon's SNICK block of programming for three seasons. The series follows the story of a young Xelan alien who is stranded on Earth. He has extraordinary powers, including the ability to turn into his alien form, which allows him to hover.
The series follows the story of a young Xelan alien stranded on Earth. He has extraordinary powers, including the ability to turn into his alien form, which allows him to hover. He also possesses extremely high intelligence and can read incredibly fast by placing his hand on the cover of a book.