Actually I don’t want Johnlock as endgame. I want it as pre-endgame.
That Johnlock will be canon one series before the last, so that there is still one series left to show people that it would change nothing - besides the occasional hands holding & kiss, or a hint that they slumber in the same bed - of the actual plot or bring a mayor change in the character. Or maybe that your sexuality does not define you and is only
a smallpart of who you are.