Have to say, after watching the livestream that Im very happy about/ Blown away by the Dragonborns!!
Fantastic work and love the Dragonborn alredy!
Glad for all the color options too and not forced into the respective color hues too! The details you can combine is rich.
Though for constructive feedback/ heads- up for until later on, theres is more you can add to truly fulfill a dragonborn/ dragon fan

Just DONT stress about it now! You deserve some well earned breathers for sure!
So...Some high wishes are that you, Larian adding the 5 different
GEM dragonborns from Fizbans Treasury of Dragons, would love to see how you do the different gem scales and add the Gem ancestries to the list of Draconic Bloodline Sorcerer aswell

Gem dragon/borns dmg-elements- resistances for Dragonborn heritage/ sub-race and Draconic Bloodline Sorcerer ancestries
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Amethyst: ForceTopaz: NecroticEmerald: PsychicCrystal: RadiantSapphire: ThunderAlso. Gem dragonborns have floating gem spikes, bits and pieces hovering slightly above their bodies and the gems at least the aforementioned and more " grounded " grounded bits are translucent/ non-opaque. So no need to have all the scales be that but at least the floaty bits.
For you who knows about the lesser known dragon types through the editions f.ex of the Chromatic family. You can create say, Orange, Yellow and Purple ( + other less known Metallic and Gem dragon types/ sub races ) dragonborns even if the breath weapons are off.
-An Orange jungle dragon spits oily salvia tha reacts flammable in air, explodes in water. Fire dmg/ resist is a viable substitute
-An Yellow coastal dragon spews blinding, dehydrating salt. Poison dmg/ resist is a viable substitute
-A Purple mid- higher up ( Deep dragons love the lower u.d ) underdark dragon breathes a beam of energy or plasma. Lighting dmg/ resist is a viable substitute
Also I believe you awesome, hard working modders can make it all realized if need be 👍