(no Will Smith apparently)
Supposedly he wanted $30 million and script approval before he'd sign on so they said "Mmmm, nah, we won't be doing that."
Besides, it's been 20 years. His character's step son (who was a little kid in the original) is now old enough to take over the hero role. :D
I don't know if this counts, but SPOILER FOR INDEPENDENCE DAY 2 SORT OF
His character has been revealed as having died in an experimental aircraft crash inbetween the films on the Independence Day timeline site. Just an FYI.
END