The Bloodlines in PF are much more interesting to me.The sorcerer idea is fine. We just need to get the community to not see it as a discount wizard.
The 5e playtest had an idea where the sorcerer had spell like abilities similar to invocations based on their bloodline. The community didn't buy into the idea high enough to get over the very very high bar of acceptance needed to make the PHB.
I mean in 5e's dragon book, the one class with an OG dragon subclass gets no exclusive spells. It ties with the favorite Marcia: wizard.
If Sorcerer had that, and didn't need components, I'd be quite happy with them.