The Dubliner has spent more than four years in jail
The verdict in Ibrahim Halawa's trial in Egypt is expected next Monday.
The court in Cairo indicated the mass trial will conclude next week.
The Dubliner has spent more than four years in prison in Egypt, and has faced trial alongside more than 400 other defendants.
Mr Halawa, from Firhouse, has been held in an Egyptian jail since his arrest during demonstrations against the ousting of president Mohammed Morsi in August 2013.
Minister Coveney earlier this month said Mr Halawa "finally had his opportunity to defend himself in court" after years of legal proceedings.
Egyptian President Abdel Fattah el-Sisi reportedly gave Irish politicians the "clear impression" that he will grant Mr Halawa clemency when his trial is complete.
Sinn Féin MEP Lynn Boylan highlighted that pledge again this afternoon:
Verdict in mass trial of Ibrahim Halawa expected on 28th August. I hope Irish Government are ready to act on Sisi promise. #FreeIbrahim— Lynn Boylan MEP (@LNBDublin) August 21, 2017