Quote Originally Posted by mutantangel
I was talking to a friend when I was in high school. He mentioned that Zell might be the grandson of Zell and Tifa. Several clues. One, Zell's spikey hair. Two, Zell DOES mention that his grandfather was a soldier in FF8. Lastly, he uses martial arts, much like Tifa, and also only uses gloves. Coincidence?
Zell might be the grandson of Zell and Tifa?

I don't think Tifa, Cloud and Zell are related. The worlds are so much different that it'd take several generations for them to shape up like that. How can Esthar become there all of a sudden? Are Centra Ruins the place where Midgar used to be, or where City of the Ancients used to be? How can there be no more Mako or Materia anymore? And so forth.

Square often likes to put many cameos that make you think how the worlds could be related. Freya has Kain's Lance and Zidane sees Cloud's Buster Sword and a guy called Locke in Lindblum, Shinra (from FFX-2) makes references to using the planet's energy as a power source etc.