I don't get where all this clumsy controls and stuff is coming from(I have ps3 version, maybe it's the 360 controller), and the story was short not bad, but you have to read a lot into it, like I think I'm the only one that figured out Jack knife is probably faith's ex, and if you read the elevator rides you know a lot more about the world, the government basically just controls almost everything, it's not so much evil as reducing our freedom in the name of safety and runners are the only ones keeping the opposition to the government running, the story trailers online help too and the world is just amazing, if you say it's a bad one you just don't know enough about it, the main plot though was a little weak, as for the running it's about as linear as sonic, you know where you need to go but you have different paths which can be used to avoid getting shot, or to go faster, or easier, as for the combat, it could use some work but it's pretty good, I love killing the pacts of the taser cops who can chase you over buildings (yes it's possible)
anyways to answer the question of course they should make a sequel, just do a more in depth story, and no prequels, the comics have that covered, combat system could use some more moves, but it by no means need to be redone or overhauled and still no idea where the clumsy controls are coming from...