Henadic Theologian
Legend
Actually no.
Tieflings and elves already both have the "lineage is just different bonus spells" design. Aasimar/ardling would have been a third built on the "you gain X cantrip, Y spell at 3rd and Z spell at 5th" system.
Further, aasimar's iconic ability is its wings. You'd have to figure out how to incorporate them into the mix and going by elf and tiefling, lineage spells don't leave much power budget for other things.
So, no I don't want all the planetouched species to be the same chassis with different spells. I like the aasimar is different and kinda wish elf and tieflings felt more different. Cie la vie.
I'm talking more lore then mechanics.