There's currently around 17,000 SP still left from blocktrades. So roughly half. They've been removing delegation over the last week in small chunks as it expires. Again, this isn't a big deal as it doesn't negatively impact investors/delegators. But it will decrease the SP we're earning for @minnowfund each week because the curation rewards will be lower. So I'll continue to push to gain more SP delegation from people who want to earn passive earnings here on Steemit. :)