If XRP released that 66% of coins into circulation it would reduce the scarcity of the current coins to a third of what it is now. The value of an XRP token would plummet until the market cap gets close to what it was before the release.
I think you might have not read the news.. Ripple actually announced that it is locking 55 Billion of its coins from supply :-) ... so the circulation coin + a billion more is all thats left.
Discussion Thread : https://bitcointalk.org/index.php?topic=1920623.0
Source : https://ripple.com/insights/ripple-to-place-55-billion-xrp-in-escrow-to-ensure-certainty-into-total-xrp-supply/
Key Points :
I think people are finally grasping what ripple is doing and how systemically big ripple's role is going to be.
i think its fair to say Ripple is like the new google for Finance... the way google was in 1990's for tech industry.. and also pretty given that ripple will eat ( already eating ? ) huge percent of Swift meal ... so yeah...