Typical "news" article on a general estate agency website I'm afraid - there's no way sales could/would/will double and to say the new law will mean an influx from (quote) "Once this law is put through and finalised, it is expected that there would be an influx of investors in the property market from countries such as: Russia" is absolutely deceptive - Russians can buy now with a fairly freely available special permission and have been doing so for years!!! See their own site for countries that cannot buy
http://www.propertyturkeyforsale.com/who-can-buy-property-in-turkey-g-2.html - oh, Russia isn't on it, why is that...this story is absolute nonsense - no law could possibly double property sales in Turkey right now.
Better would be a law that allows non-nationals to buy without the stupid 3 month wait - you know, those three months which allow cowboy builders to get in a total mess, run out of money and borrow on the property some poor sod has already paid for.