Since my daughter is working her way through that JSA run, I just saw the "Say you" "So Cool" switch. It was based on the geneie's name, and there was a story line where he merged with another imp, changing the key words for Jakeem. Then the genie merged with Johnny Thunder, but that seems to be switched back by Doomsday Clock...maybe???
I haven't read many comics since "Flashpoint" but I had heard that in one of the recent books the Thunderbolt had returned as "Johnny Thunderbolt" the JSA version.