Nah... power/super/duper/ultra armors are not necessary. What we have is really sufficient enough:
Power armor
Hardened power armor
Advanced power armor
Advanced power armor Mk II
I would much more appreciate something like customization ("You see Brotherhood Power Armor. At first look there is nothing unusual but with closer examination you find out that this armor is using micro-fusion reactor MKII which is attached to enhanced skeleton, allowing its wearer to carry much more weight.") to current PAs rather than whole new armors.
Give us more "scrapyard" armors such as metal armor, leather vests, tire armors, tribal scavenger "destroyed PA" type of armor etc. Those are needed and way more fitting into wasteland than PA itself. PA should be stuff of legends. Hi-tech endgame gadgets for dedicated players. Not something what should have zilion versions just so players could say they wear that "awsum powah metal overal".