Nintendo of America has tweeted on 23rd February that a new "Inherit Skill" feature will be coming to Fire Emblem Heroes this March.
This March, Inherit Skill will be added to #FEHeroes! Which skills do you want to pass on to which Heroes? Start planning your options now! pic.twitter.com/poQiGuozUT
— Nintendo of America (@NintendoAmerica) February 24, 2017
It seems that the new feature will allow players to pass on skills from one hero to another. As of this moment Nintendo hasn’t announced how the new feature will work and which skill will player be able to pass to another hero.