yes you can re entry and will get a stamp until 28 November. You must ask then inside Thailand again for an extention to uphold ur 1 year.status. Or you chose for a 30 day visa exempt stay or u make a new visa outside Thailand.
If u buy every year outside from Thailand a 1 year visa is OK. But if you go to immigration inside Thailand and ask there for 1 year extention, then it is a different story. Then you need a re entry permit.