NO IT'S NOT
I heard a "gospel" song on the radio saying "there's a new name written down in glory, and it's mine", celebrating the conversion of the singer. It's catchy, but it's wrong.
Revelation 13:7-9 says "Also it was allowed to make war on the saints and to conquer them. And authority was given it over every tribe and people and language and nation, 8 and all who dwell on earth will worship it, everyone whose name has not been written before the foundation of the world in the book of life of the Lamb who was slain. 9 If anyone has an ear, let him hear"
No new names are written down. They were all written down before the foundation of the world.