Idea Zombie Pigman

I got an idea to make the Nether more interesting, fun, and challenging. Here's how this idea would work:

The Zombie Pigman would spawn in zone 5 and 6.
Zombie Pigman damage: Same damage in zone 5. Zone 6 gives a strength 1 to the pigman.
Zombie Pigman speed: Speed Boost 1
Zombie Pigman Agressive/Passive mode: Passive mode on during zone 5. Aggressive mode always on in the nether.
Zombie Pigman Health: Same health in zone 5. Zone 6 makes the pigman have a resistance 1.
Grouped up Zombie Pigman: In zone 5, they spawn in 1-3 groups. In zone 6, they spawn in 2-5 groups.
Armored Zombie Pigman?: Here is a list of what they're like:

1/4 leather pigman chance of dropping their item and spawning rate:
Drop Rate: 20%
Spawn Rate: 40% in zone 5. 55% in zone 6.
2/4 leather pigman chance of dropping their item and spawning rate:
Drop Rate: 18%
Spawn Rate: 35% in zone 5. 50% in zone 6.

3/4 leather pigman chance of dropping their item and spawning rate:
Drop Rate: 16%
Spawn Rate: 30% in zone 5. 45% in zone 6.

4/4 leather pigman chance of dropping their item and spawning rate:
Drop Rate: 15%
Spawn Rate: 25% in zone 5. 40% in zone 6.
1/4 iron pigman chance of dropping their item and spawning rate:
Drop Rate: 14%
Spawn Rate: 20% both zones.

2/4 iron pigman chance of dropping their item and spawning rate:
Drop Rate: 13%
Spawn Rate: 18% both zones.

3/4 iron pigman chance of dropping their item and spawning rate:
Drop Rate: 12%
Spawn Rate: 16% both zones.

4/4 iron pigman chance of dropping their item and spawning rate:
Drop Rate: 10%
Spawn Rate: 15% both zones.

1/4 diamond pigman chance of dropping their item and spawning rate:
Drop Rate: 8%
Spawn Rate: 10% both zones.

2/4 diamond pigman chance of dropping their item and spawning rate:
Drop Rate: 6%
Spawn Rate: 8% both zones.

3/4 diamond pigman chance of dropping their item and spawning rate:
Drop Rate: 3%
Spawn Rate: 6% both zones.

4/4 diamond pigman chance of dropping their item and spawning rate:
Drop Rate: 2%
Spawn Rate: 5% both zones.

I made this idea because it would make the Nether feel like the the Nether type of feeling. Making this more fun and challenging for those in the Nether rather then killing zombies with a Desert Eagle in one-shot.

Any ideas or suggestions? Be sure to comment on what should I add/replace/remove/etc!

 

Well, the zombie pigman are meant to be very strong and they probably would have the same chance for break legs/Cause bleeding/Infect or have a higher chance of doing that.
I'm still debating on if zombie pigman should always be aggressive in the Nether or not. Cause they still passive so they won't cause harm in zone 5's unless you hit them.

That could be quite good, however, that makes it quite fairly easy in zone 5 - 6 places. What I am aiming for in this idea is trying to make it harder to get stuff in the Nether and other popular places instead of constantly camping in one spot and getting full diamond and tier 4 weapons without barely risking from regular zombies. Zombie pigman would make it much more difficult to camp, making it fun for others.

Now for team fights I forgot to mention in the thread. Team fights would be much more fun and harder due to the fact that you have strong pigman coming right at you, blocking your shots or other's shots, and taking you down. This can benefit you in many ways in taking down a full diamond.

 

I noticed that v:
But this one has a lot more detail and more in-depth telling of what these zombies can drop, spawn rate, etc.

 

Since the new update of zombies being harder, I'm not sure if this thread is any good.
Although, I'm wanting to hear from Mario or Sigy if this might be considered into consideration.