Thanks @Krikor - you always provide the best support - I so appreciate you :)

Your last post just reminded me of the Joomlabamboo Zenkit:
zenkit.joomlabamboo.com/filter

It's a turn-key solution, but I'm not sure how well it's maintained.
This could be an opportunity for others interested in provided professonal K2 solutions.

To be honest the demo seems a bit dated. The masonry script will not trigger unless you resize the screen.

I have implemented masonry in numerous K2 modules, it is quite easy. I can assist you if you need a similar solution.

Thanks @Krikor, but I am going to stick with my solution for now, because I do not need masonry. I am using a basic blog layout.

This is why I there is a need for an extension that extends the existing template list view (not replace it)

I greatly appreciate you offering assistance - trust me - I will take you up on it later - I have a list of K2-related things that require assistance :)

Any big plans for the summer?