Not sure if it was ever suggested...
But for Masterminds, why not "Multiples" or "Clones" like multiple man? It shouldn't be that big of a streach. The benefit could be sheer numbers of clones, the negative no diversity.
Another option for Tankers: Steel Armor (ex. Colossus).
Finally, is there a way to make Super Strength a little more interesting to watch. I am falling asleep.