I've been thinking - post WaT, Retribution is running around the Cosmere making enemies all over while Honor can no longer grant Surges to the Knights Radiant. Meanwhile, the other 14 Shards have been dwindling in number... down to exactly 10....
Preservation and Ruin have turned into Harmony (-1 Shard)
Devotion and Dominion are dead and turned into the Dor (-2 Shards)
Ambition is dead (-1 Shard)
I find it curious that each remaining Shard lines up pretty closely with the ideals and philosophies of a Radiant order:
Bondsmiths - Harmony (uniting people)
Windrunners - Valor (protecting others)
Skybreakers - Mercy (current Skybreakers have lost it a bit but originally I imagine a big part of their order was knowing when to administer the law and when to show Mercy)
Dustbringers - Autonomy (all about Self-Mastery)
Edgedancers - Cultivation (speaks for itself)
Truthwatchers - Reason (all the ideals relate to learning truths about existence)
Lightweavers - Virtuosity (confirmed to be not about Virtue but about being a Virtuoso, i.e. artistic talent)
Elsecallers - Invention (Self-Improvement, or creating the ideal self)
Willshapers - Whimsy (all about pure freedom)
Stonewards - Endowment (the "gift" of being dependable, giving people your effort, dedication, support)
How likely do we think it is that each order of Knights Radiant receives their Investiture and surges from a different Shard? As they Unite to take on Retribution, each chooses an order to act as their soldiers in the war to come. What do you think?