John,
This is from a previous post on the subject.
"Future Turkish Lira
As of January 1st 2009, the prefix ‘New’ used in the New Turkish Lira and New Kuruş will again be removed and new banknotes, without the prefix ‘New’, will be put into circulation together with the current ones. The New Turkish Lira banknotes will be withdrawn from circulation as of January 1st 2010.
Nevertheless, the New Turkish Lira banknotes will be redeemed for a period of ten years starting from January 1st 2010 till the expiration of working hours on December 31st 2019 at the branches of the Central Bank of the Republic of Turkey. The New Turkish Lira banknotes will be worthless as of January 1st 2020."
Joan