I like those, a little less so the other ones except Lotahringia.
I would add:
- Yuan as an alternative Qing if formed by an Altaic culture country
- An unification tag for Altaic cultures (some kind of reformed Mongolian Empire)
- A decision for Tatar countries to become the cultural union of tatars if a country holds the breakaway khanates (Kazan, Crimea, Nogai, Golden Horde) capitals.
- More countries to form in India and a different formation for Hindu and Muslim countries: Bharat for Hindus and Hindustan for Muslims (with a cressent flag).
- Formations for westernised countries: Westernised Qing/Ming/Yuan become China, westernised Mughals/Bharat/Hindustan become India, etc...
- The Caliphate if a country passes Unify Islam does have a nice touch to it, even if it's pushing it far.
- Turkey could be formed by Anatolian beyliks or by the Ottomans if they lose the Balkans/their dynasty.
- Two-Siciles and Belgium because why not, those countries formed in history. But add a tech requirement similar to Westphalia so that it only appears later in the game.
Me likes, I would add a formable Maghreb to this.