This newest product from Fans Toys is Scoria. Scoria is based on the G1 Dinobot Slag and is going to be a very large piece at 10.5" tall in Robot Mode. He comes complete with Sword and Blaster and as you can see from the photos he matches up nicely with Masterpiece Grimlock and Optimus Prime. These photos are rendings only and the final product is subject to change.
This version is has the Slag Toy colors. ETA for April 2015