I really think that wild growth is not needed any more. Innervate is more than enough ramp for the deck and you need more value cards in place of the wild growth. Im a big fan of a 1 of bite in druid decks, works wonders in mine and Ancient of Lore is a great card so a swap there seems fine too, could be numerous other things, but your path seems fine.
Feel free to check out my thread for my current druid list, I tend to keep it up to date and it performs very strongly at high levels.
I really think that wild growth is not needed any more. Innervate is more than enough ramp for the deck and you need more value cards in place of the wild growth. Im a big fan of a 1 of bite in druid decks, works wonders in mine and Ancient of Lore is a great card so a swap there seems fine too, could be numerous other things, but your path seems fine.
Feel free to check out my thread for my current druid list, I tend to keep it up to date and it performs very strongly at high levels.