The popular Japanese band Linked Horizon has revealed in a recent tweet the title of Attack on Titan Season 2‘s opening song – “Shinzo wo Sasageyo!” (lit. Dedicate the Heart!)
— Linked Horizon 情報局 (@L_Horizon_info) March 6, 2017
This title seems to be a callback to a scene from Episode 16 of Season 1, where then-commander Erwin Smith welcomes the new members of the Survey Corps and gives them the iconic salute all Attack on Titan fans know and love.
The band Linked Horizon, and their lead singer-songwriter REVO, are also the artists behind both openings of Season 1, Guren no Yumiya and Jiyū no Tsubasa.
Attack on Titan: Season 2 will premiere in April 2017.