The Matrix draws heavily from a lot of Cyberpunk, especially Neuromancer where (as far as I am aware) the term "the Matrix" was first born; "...A consensual hallucination experienced daily by billions of legitimate operators, in every nation..." The movie also basically carbon copies what Zion looks like from the book.
Trinity is a very close copy of Molly from Neuromancer. And one of the key characters, McCoy Pauley (aka the Dixie Flatline) existed as a ROM personality matrix, which is what I imagine they will do with Trinity and Neo.