What if the "Archway" in the Department of Mysteries was a Stargate that leads to Destiny? HP, RW, HG, GW, NL and LL are brought to Destiny, occupied by the SG personnel from Icarus Base. Six destinies merged in one "Destiny". Both canon and AU at times.

Harry Potter thinks his destiny is complete. The Room of Requirement disagrees and sends him to the Destiny, the Ancient ship several billion lightyears from home.

Sucky one-shot that I made due to a plot bunny biting me in the neverneverregions. similar to Voads and that other guys' crossovers, but i wanted to jump ahead and also use original timeline for HP - i.e. he was born 1980, etc. so on destiny quite a while

ABANDONED: Harold Black was merely a linguist assistant on the Icarus Project, now he is on a ship named Destiny. After dealing with fate all his life will he find that maybe he should just let destiny lead him?