You can re-route to please your eye, but everything still needs to be connected.
Here's what I did when I was refinishing my plenum and valve covers. I hated how they draped over the rear valve cover and ran along the rear trunk wall so I made my own lines with aluminum tubing from a hobby shop. I pretty much had to - I had no idea how fragile the stock lines were and they pretty much impoded in my hand when I was trying to remove them. PCV was also relocated to the front valve cover.