Sinclair and his CO get together during the Earth-Minbari War. Delenn wakes from a bad dream, and thinks about John as she watches him sleep. Spoilers through WWE 2. David Sheridan gets lost in Sector 14 and ends up going back in time to 2262. There he meets his parents, Michael Garibaldi, and one VERY speacial Ranger.
Stories are stand-alones though.
While on Minbar, Ambassador Sinclair meets some old friends from his Academy days. Susan's Thoughts on Marcus, lov e, the universe, and the rangers. Eighty six years after Babylon 5. Author encounters Susan Ivanova, who appears on the screen of his PC to t ell him to stopwriting a story and get some sleep. The secret of Sinclair's true identity is revealed.