Former Glee star Grant Gustin said that he would love to return to the series in a potential reboot. The actor, who went on to star in The CW's The Flash, originally appeared in seven episodes of the musical dramedy series. He played the largely villainous Sebastian Smythe, the lead singer of the polished rival glee club known as The Warblers.
https://screenrant.com/glee-show-reboot-grant-gustin-response/