Fox still sees what fans want. Plus the bros set it up for space. Fox would be stupid to not give a larger budget to a movie that's in space. They saw we wanted gore, they gave it to us. Now they see we want just more than gore, and I think that they'll try at least a little harder.
I agree, Fox sees what fans want. Please refer to my wonderful MS Paint drawing in this thread for that.
The problem is that Fox sees what fans want and gives them just that, which is usually a pile of garbage. "Bllaaahhhh I wanna see aliens and predators fight! Characters are for pussies, just give me cheap thrills! I watch wrestling, listen to Kid Rock and update my Myspace page 8 times a day!" This is what Fox hears because that's what the majority desires.
But ask yourself this, which Alien sequel actually gave the fans what they wanted? Did Aliens? No, too much of a departure. Did Alien 3? Hell no, how dare they kill those characters and follow an action thrill-ride with that depressing story!
But you know what, we loved it. Why? Because it was unexpected, brave, and articulate. To shovel the shit people want directly into their mouths has a term. It's called "selling out." As soon as you start listening to the whims of the majority you find youself on a slippery slope of money right out of Credibility Land and only those with some severe artistic integrity can put down the cash and climb back out of that pit.
Fox doesn't have that. There is no reason to do any better when people pile up in theaters and cream their jeans over the most mediocre, uninspired, low-budget cheapness you can put on the screen. It's not fair to people who would like to see a more artistic approach to what was once a mighty franchise, but since when has the majority ever had good taste?