Greece will have to keep waiting for details on how much debt relief it will get even though its bailout program is coming to an end, the Eurogroup President told CNBC on Thursday.

The Greek government has been asking for debt relief since its third bailout program was prepared in 2015. However, several political stones, including the upcoming federal election in Germany, have derailed any detailed conversations.

"As you know today will not be the meeting when we will take sort of the final decisions on what size of debt relief is needed," Jeroen Dijsselbloem, who chairs the meetings of the 19 euro zone finance ministers told CNBC on Thursday.

"We've outlined last year what kind of debt measures we have standing ready. We've always said that at the end of the program, in the second half of next year we will do the final calibrations of what's needed and how to design it," he said ahead of a Eurogroup meeting.

Meanwhile, German Finance Minister Wolfgang Schaeuble told CNBC Thursday that he was optimistic of a solution. "I am quite optimistic that we will find a common solution but I cannot announce the result of our negotiations today before the meeting has started."