I think Sorakas Self Heal is very much a cause of her passive play style in lane and everywhere else
Now you might disagree with me but as someone who used to play a fair ammount of Soraka in end of season 5 i think her old Q without the W interaction was way more interesting.
You hit Q -> You get healed. You hit multiple enemies with Q -> You get healed some more
No empowering her W with Q and ?Rejunevation?
Maybe better AP scalings to destroy those pesky tank builds.
ANNND:
Riot pls leave some kind of lore interaction between Soraka and Warwick otherwise my Fanfiction about those two might be more fictional then it already is. [zombie-nunu-tears]