I like your New champion Archetypes. I think that they would be good as face lifts to older existing characters. Here would be my thoughts:
Nehant - Undead champion
Chalice the Husk, a version of
Chalice or at least the Withered old man that held Chalice until it was taken.
Kotoba - Tracker Champion
Sensei Amaya, a version of
Amaya that that replaces
Tsuro as the master of the Trackers.
Zil - Circus Champion
Dirge Grinder Kriss - A version of
Kriss made even more melancholy by the fall of the Zircus.
Noz - WitchBlade Champion
Angelica the Vindicated - A version of
Angelica who has had her name cleared of the murder of
Councilor Ishaia.
Sap Heart - Multi Race Champion
Red-Mark the Reincarnated - a version of
Red-Mark born again as all aspects of the forest he died to protect.
Runic - Craftsman Champion
Jorus the Runic - a version of
Jorus who followed the lead of his friend
Hares the Brute and joined the Legion.
Stone Linker - Fire Air Water Champion
Eylsia The Traveler - a version of
Eylsia who has embraced the ways of the Stone linkers os she can continue her Globe Trotting ways.
Mercenary - Mystic Slayer Champion
Super Assassin Style Quilingo - a version of
Quilingo that says "PANDA NINJA! PANDA NINJA! PANDA NINJA! and SHUT UP because PANDA NINJA!"
Pirates - Mage Champion
The Palladium Corc - a Version of the
The Ugly Corc that has perfected his arts and has bonded his wounded Flesh with an enchanted silver suit.
Nomads - Undead Champion
Ozymandias of the Necropolis - a version of
Ozymandias who rules as king of the dead, after his failed attempt to become the
Sol'Ra Avatar