They've offered to us a:
-Lowpass Filter
-Ring Modulator
-Phaser
-Delay/Looper
-Pseudo-sequencer Filter Bank
-Sync-able Oscillator
To be blunt, they're running out of modules to reproduce, and refreshing new ideas take time to emerge.
I think one classic module from modular synth history has seriously been overlooked, and it should be reincarnated in 'fooger form.
I'm talking about the bode frequency shifter, of course.

Maybe it's just me, but I love playing with them in Arturia's Moog Modular software. I'd LOVE to have one to fool around with on my desk with my Voyager!
What do you want the next moogerfooger to be?