I wonder if a Greek revolt in 1806 would have attracted the armies of Napoleon and Tsar Alexander after they signed the Treaty of Tislit, into attacking the Ottomans and defending the Greek Revolt. OTL the Tsar did not take Napoleon up on his offer to partition the Ottoman Empire and Napoleon later got diverted by the Spanish Revolt but if the Greeks had revolted,, it likely would have created some urgency and gotten both of them off dead center, neither one of them wanting the other to run in and exploit the situation alone.
Most likely though, it would result in a Greece that was a vassal of Napoleon--until Napoleon was defeated at the Congress of Vienna. Then, Greece would likely get full independence over the Peninsula, with the Russians getting Salonika and Kavalla and the British getting the Greek Islands. There might not be an Ottoman Empire to ressurect at that point.