you could automate the notes on the comb filter for a cool sweeping glidey thing in the vox, its what i do for all my pads! also sorry i listened to this yesterday but forgot to comment, really nice stuff!
Actually I think this was the first song where I really did that to my vocals. I've messed around with it before, but this time I figured out that by setting the notes to what's more likely to pop up in the melody you can almost make it sound vocoded. And I'm not a trained vocalist at all. Almost anyone can sound decent if they put the time in to get a good recording.