Underground Clash
The Guild of Black Wizards Avatar, plan a strategy of purification. In search of Gray's fate, Natsu, Lucy and Happy, who find the Guild location, will attempt to infiltrate in the enemy area.
Aired 28/10/2018EP 4 - Underground Clash

2018
Fairy Tail Final Season
Fairy Tail has been disbanded. A year later, Lucy comes into contact with Natsu and Happy. The three of them try to find the other former members' whereabouts to reconstruct the guild as they seek the real reason behind the guild's disbandment.
(Source: Anime News Network)