Here we go again. No it can't.
Yes, of course you could pour two fresh strips of concrete between 09L/27R and the M4.
But would they be usable runways? No.
Think about it. Let's call the new runways 08L/26R and 08R/26L (using the next available number, as is the convention when you have 4 parallel runways), and assume that the two new runways and the existing 09L/27R are equally spaced (giving about 800 metres separation between each).
Explain how an operating mode would work that would allow the retention of runway alternation, provide for simultaneous independent parallel approaches to a pair of runways, and minimise the number of runways crossings to and from the terminals.
Then I'll believe you.