Half-Life: Rewritten Consequences Epilogue:
After everyone successfully managed to take down Breen and his ruthless empire, many of its citizens started to rebuild the city into a new community. Although John did miss part of his old life, he did appreciate the current timeline he was residing in. Many of the new citizens wanted John to be president, which John declined. Everyone lived a little bit happier than before, though they were still preparing for the eventual Combine invasion which might be closer than they realize.
The (actual) End.