The magnificent folks at Kaiju Korner posted several articles jam-packed with concept art, sculpted prototypes, packaging art, and previews of things to come over the last several months. It's a Glyos feast if you've never seen it, and if you missed it like I did there's no better time to go look.
Click here to see all their Onell Design articles, as it's probably a good idea for you to do so. If you aren't convinced, here's a video interview they did with the Matt himself, which you probably want to see.
(That's him in the beard.)
While this is an older video, he does namecheck a long-in-development PVC release which could be pretty exciting when it makes it out.
Again, more can be found at Kaiju Korner. Including vehicle concepts... yes, vehicle concepts.