I have a little side idea, its not anything great but i think it would be an interesting thing for some players.

My idea is simple, a quest that enables you to get 1 of 3 mods that will alter the paragon mech, these mods would each have a special effect but you may only get one and thus lock away the other 2 remaining mods.

Mod 1: plague paragon mod, this will add a small radius around the paragon mech that will have an acid effect when their ability is turned on, it will also grant a 20% damage reduction.

Mod 2: fire paragon mod, this will add the heat effect to all weapons when their ability is turned on and will add a weak shield to their body that is has as many hit points as 10% of their health.

mod 3: death paragon mod, this will double the time it takes to lock onto the paragon when their ability is turned on and will give them a 10% damage, rang and fire rate increase.

All mods will add a 10% increase to their max health, however these mods can't be upgraded unlike other mods.