Details of Independence Day sequels

Talking to Entertainment Weekly, Roland Emmerich has revealed details of his potential two-part sequel to the ultimate alien invasion film, Independence Day. The two sequels will be set a couple of decades after the original, with the next generation of humanity dealing with the return of the aliens:

The humans knew that one day the aliens would come back. And they know that the only way you can really travel in space is through wormholes. So for the aliens, it could take two or three weeks, but for us that’s 20 or 25 years.

Emmerich apparently already has an art team working on visualising the alternate timeline of post-alien invasion Earth:

It’s a changed world. It’s like parallel history. [Humans] have harnessed all this alien technology. We don’t know how to duplicate it because it’s organically-grown technology, but we know how to take an antigravity device and put it in a human airplane.

Two scripts co-written by Dean Devlin have apparently already been written, with a mix of characters from the first film and new guys:

It’s still some of the same characters, but also new younger characters; it’s a little bit like the sons take over.

Emmerich also commented on the general shape of the two films depicting the second invasion:

The first one ends on a little success, but only enough to give the humans hope. And then in the second one they free themselves again [from the aliens].

What do you think? I am intrigued by the idea of post-alien invasion technological advancement, but also cautious: Independence Day is a pleasingly formed, happily ever after. Is it worth the risk of a less satisfying sequel? Lets hope these live up to the original.