In so far as i'm aware it should be fine.
"
Linnorm
Your draconic heritage stems from a mighty, primordial linnorm rather than from the more common, somewhat civilized dragons.
Associated Bloodline: Draconic.
"
still says draconic hertiage. so you still have blood of the dragons in you.
Also under the wyldblooded archetype
" When creating a wildblooded sorcerer, select an existing bloodline, then select one of the following mutated bloodlines associated with that bloodline. Use the normal bloodline's class skill, bonus spells, and bonus feats, and the mutated bloodline's bloodline arcana. Use the normal bloodline's bloodline powers, except when the mutated bloodline replaces one of those powers."
So you still select an existing bloodline. even if it's changed it's still selected, but just modified. So you still selected Draconic bloodline, it's just altered.
It's still Draconic bloodline, it's just mixed a bit. Even that combo blooded thing would count as draconic still.
by my reading of how the wyldblooded archetype and in specific Linnorm's wording is worded anyway. Feel like Linnorm makes a point of saying it's still Draconic - likely for this sorta reason.
Now can you use the DD's bite ? That's debatable. It says when you grow claws yo ucan also grow bite but you can not grow claws.
but if you just wanted DD for durability bonuses not a big deal I guess.
