New Homeland Season 3 Official Premiere Date Finally Revealed. 14 January 2013 2:12 PM, PST | OnTheFlix | See recent OnTheFlix news Â». New Homeland season 3 official premiere date finally revealed. According to Collider,Showtime finally dropped the official new premiere date for their upcoming Homeland season 3. It turns out that it's not returning in the Spring as was previously reported. Instead, it will debut on September 29th,2013 at 9pm eastern time on Showtime.