Will there ever be another "Star Wars"? Are there any recent movies that our kids will look back on in 30 years and still LOVE it? I can see Lord of the Rings, but what else? Matrix maybe?
I don't think so, no. Mostly because Star Wars came out of nowhere and nothing like it had existed previously. Star Wars wasn't just a film, it was a cultural phenomenon, complete with the first mass-merchandising campaign. Star Wars drinking cups. Star Wars lunchboxes. Star Wars underwear. Star Wars shoelaces. Star Wars action figures. Star Wars TV specials. And so on and so forth. It was EVERYWHERE, and prior to that, nothing had come close to that level of merchandising based on a film with such wide appeal.
Star Wars also (despite what some here say) wasn't targeted solely at kids. It's space fantasy, definitely, but it still can appeal to adults, even today. It's probably closer to, say, a Pixar film in that respect.
Mostly, though, I think that no film will accomplish that, simply because no film will have that kind of widespread, unheard of appeal in a way that COMPLETELY changes culture.
These days, everyone TRIES to be Star Wars in the sense of having that kind of impact. With at least the first movie, nobody knew it'd take off like that. Sure you had successful films, even f/x extravaganzas, but it caught everyone off guard. Now everything is engineered to try to lead to that result.
And let's face it. When you talk about "What'll be the next Star Wars" the answer, by necessity, is "Nothing." The "next" thing won't BE like Star Wars. It'll be something completely different that sweeps the cultural landscape and reshapes it. The only thing that came close to that in recent memory was the Harry Potter phenomenon, but even that I'm not sure qualifies. It didn't exactly change the cultural landscape the way Star Wars did, but it came close.
Hell, the next "Star Wars" probably will be in some completely different medium. Maybe some film where you assume the role of the hero yourself. Some fusion of video gaming and film, played out over the "cloud" or somesuch.