I'll definitely support Shenmue if SEGA ever decides to make another one, but so far none of the petitions I've participated in made a difference. Those petitions include:

1. Release the Dreamcast version of Virtua Fighter 4
2. Don't kill off the Dreamcast
3. Make a Dreamcast 2

See the pattern here? (hint: it rhymes with creamdust) These days, anything that came from the Dreamcast era are quickly forgotten. Shenmue was one of those wonder projects that was supposed to propel Dreamcast to greatness, but instead was met with a WTF? I'll sign on the petition all right, but I don't think it'll even raise an eyebrow over at SEGA. I've been proven wrong before of course, so here's hoping.