The anime Nanatsu no Taizai (The Seven Deadly Sins) has received a trailer for the second half of the third season. Official Site
The animation is all by Studio Deen , however the series has been receiving harsh criticism for the quality of the animation in the last episodes.
Finally, the series follows Elizabeth, the third princess of a kingdom that was taken over by the Holy Knights after a coup. She sets out to find the Seven Deadly Sins, a group of knights who had defended the kingdom ten years ago and who disbanded after being accused of plotting against the kingdom.