The last we saw Jaime Lannister, he'd parted ways with his desperate sister queen and started the journey North. Nikolai Coster-Waldau told me about the season Seven finale:
He truly believes that we have to fight this thing. This is humanity at stake. We're either living or dead conquering the world. Jon Snow or someone else in charge. Otherwise, he's going into enemy territory, and he's quite recognizable with the gold hand. If he wants to get to battle, he's going to die. You'd hope he can get there.
Yes, let's hope he can make it there. Game of Thrones Season Eight. He looks to be in pretty good condition. But, you might notice something familiar about his armor. As Game of Thrones fans have pointed out: