The protection power gets taken down a peg, with a raise just making the 2 Armor points into Toughness, and no way to increase that via the Power Modifier anymore.

So Greater Protection for +2 Power Points makes the Armor 2 points MDC and adds 2 points Toughness.

UPDATE: The updated Savage Rifts Mega Power Reference was just published this week.

The Mega Power Modifiers appear to be pretty beefy compared to what I was proposing, “Enhanced Protection” and “Greater Protection” at +1 and +3 Power Points, respectively, the former giving +4 Armor or +4 Toughness with a raise, and the latter giving +6 MDC Armor (doesn’t stack with non-MDC armor) or +6 Toughness (with MDC-equivalent protection spelled out this time) with a raise.