The rate ended at the end of May and then was extended.
Investec have promised to offer the best 6 month and 1 year term deposit rates on the market so their new rate(s) will need to be above 3.5% and 3% respectively.
I have added a link to the NR product in the best buys term deposit thread.
Interesting that Halifax say they will offer the highest rate for a one year term deposit. Investec have stated that they will offer the highest rate for the foreseeable future. Will be interesting to see what happens.