I think they can still go on for awhile yet. We'll know when they've made there last game when the starting screen is blue, and the text:
The World is veiled in darkness.
The wind stops, the sea is wild,
the earth begins to rot.
The people wait, their only hope a prophecy...
'When the world is in darkness, Four Warriors will come..."
Four Light Warriors appear among the people,
each carrying an Orb. Two thousand years ago,
the Orbs shined with Light. Now, only darkness....
Although I think it would be a cool way to end the series... a complete remake of FFI following the same story and path/character style with the 21st century graphics and voice overs.
