Its probably not that simple. His early game passive is significantly nerfed and he also lost CD and early base damage on Q. That will probably have a significant effect on his early clear speed. His early dueling should also be nerfed by that (the armor shred on Q isn't super relevant early), though the lifesteal on passive might offset that somewhat, not sure. I suspect it will be a buff overall, but its not without some potentially impactful tradeoffs.