Here is an article about a posible "ID4:2" from <A HREF="http://filmforce.ign.com/">IGN FilmForce.com</A>

<img src="http://ffmedia.ign.com/filmforce/image/id4_ffbox.jpg" alt=" - " />

</font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial"> Second Independence Day Going Ahead Sans Smith
Devlin and Emmerich have a story idea they like.

June 13, 2002 - "I think we've finally found a concept we like," Devlin tells Cinescape magazine. "Something Roland [Emmerich] and I are very excited about, and we're now trying to work it into a movie and hopefully we'll start writing the script sometime in the next year."

A sequel to the self-contained story of the original Independence Day may raise question marks in some people's minds. Filmmaking team Devlin and Emmerich realize that, and it poses a challenge in creating a successor to their hit science fiction blow-'em-up adventure. "So many sequels make the mistake of trying to make the first film over again. ...[The first Independence Day] was never intended to have a sequel," explains Devlin. "We didn't want to jam one into it. So when an idea came up which really felt organic to the story we were trying to tell, we got really excited. It's not really beyond the second film. I don't think this is franchise building. We wanted to wait until he had an idea where we said, 'That's worth doing.' I think we finally have it."

Devlin says that the events of 9/11 gave him and Emmerich new perspective on the possibility of a second ID4. "It spurred a lot of discussion, and out of those discussions came a way of doing the film. And we move from that."
Devlin compares Independence Day 2 to what George Lucas has accomplished with Star Wars or James Cameron with the Alien films - how each film had its own "voice", even though they were linked with a common theme. Devlin does stress, however, that they have no plans for sequels beyond ID4:2.

Devlin has not said if the script he is preparing will include characters from the first film, though he has expressed a commitment to get as many of the original actors on board as possible. Will Smith, star fighter pilot in the original, has indicated that he won't take part in a sequel. The project is going forward despite his tentative absence, and we can only speculate at this point what Devlin and Emmerich will cook up for the Independence Day 2 storyline. </font><hr /></blockquote><font size="2" face="Verdana, Arial">Idk that is kinda weird sounding.