Apocalypse is on the hunt for four new Horsemen.
Who would make the perfect candidates for the job?
Each horseman has to have at least some similar properties to their namesake, and you have to come up with a way that Apocalypse can improve upon them, as he does with all his Horsemen.
Death - Sabretooth:
The only way I can see Creed returning from the dead is to have Apocalypse ressurect him using his Celestial tech and scientific know-how.
Enhancements include his adamantium skeleton and claws returned to him, his healing factor, strength, speed, and senses all enhanced, and some awesome new weapons.
War - Juggernaut:
What could be more awesome than seeing Juggernaut all pimped out with Apocalypse-tech and weapons, in addition to his mystical strength and invulnerability. Not a lot you can improve on physically, but mentally Juggernaut could be turned into an unhinged killing machine capable of laying waste to any army man can muster.
Famine - Sienna Blaze:
When was the last time this chick showed her face? Blaze's powers are able to effect natural phenomenoms that occur on Earth, via manipulating the elctromagnetic fields of the Earth. Every time she uses her power it rips huges chunks out of the electromagnetic field of the Earth, causing massive catastrophic damage to the natural surroundings. Once Apocalypse gets a hold of her, she can use her powers to literally bring nature to a halt. No food grows, massive storms and earthquakes hit populated areas, vegetation and livestock die and rot, and eventually, the Earth will be in the grip of a planet wide famine.
Pestilence - Omega Red:
Red's death-spore virus is a perfect weapon for Apocalypse to get his hands on, and with a little tweaking, and an uber-badass redesign to his look. Red's physical stats can get a boost, and his tendrils are given a few nasty little upgrades too. But it's his ability to release the death-spore virus on a much larger scale that makes Red the most dangerous of the Horsemen.