Personally, I enjoy the recaps. Often times you all seem to notice or pick up on something that I did not. Subtle things such as rain in the back ground and what not. I vote to keep them.
There is not much that you guys don't already do to make WND a good show. Perhaps if there is a unique sound effect or over the top scene maybe there could be a segment where you can bring in someone from the sound studio and talk with them about how particular sections in the chapter where created. Where they difficult/easy to come up with/stitch together?
Perhaps talk about your weeks. Was there anyone you came across that you wish you could have given directions to '
The Colony' to? Did you discuss the episode with people at your work at the watercooler? What were they're thoughts?
The only other thing I can think of to add to WND is in the off week between chapters just add a Chapter recap episode and a sort of where we've come from - what lies ahead State of the Undead Union Adress.