Orban only arrived Hoffenheim in January from Ligue 1 outfit Olympic Lyon.
The Nigeria international spent one year at Lyon.
According to French news outlet, Foot Mercato, the powerful forward is now set to return to the French top-flight with Toulouse.
Orban was not included in Hoffenheim’s squad for the DFB Pokal win Hansa Rostock on Saturday.
The 22-year-old scored seven times in 29 appearances for the Village Boys.
He has four years left on his contract with Hoffenheim.
