Also, just to make it interesting, someone can offer you a way to cheat, abseloutely free of charge. If you take up his offer, you'd actually be banned from entering that tournament for being caught.
Teaching a new game may not be as wise, but I guess it could work. Sabaac obviously would be good, but apparently it has not been invented yet. I think we should stick to Pazaak.
Actually, Almost none should come back. Say I killed Bastila, then she came back in K2, I would be really POed. I don't know how drastic the storyline will change from what you say in the beginning, but it would be a risk.