What would be the procedure for extending the stay after 3 yrs

USA H1B Visa
1

http://www.reuters.com/article/2013/04/16/us-usa-immigration-employers-idUSBRE93F04Y20130416?feedType=RSS&feedName=topNews

What would one has to do after 3 years of stay according to this new policy. Also the visas that will be granted in this years lottery will have extendible stay of 3 or 6 years.



Agreed the qouta is extended but the policies are very tight.



Thanks