A committee of three commissioners from the Criminal Cases Review Commission (CCRC) met on Tuesday to discuss the former Wales and Sheffield United footballer's case.
They could have decided whether the conviction should be referred for appeal.
However, a CCRC spokeswoman said: "The Committee decided that further investigation was needed before it meets again to make a final decision on whether or not to refer Mr Evans' conviction back to the Court of Appeal."
No date has been fixed for the next meeting.
Once the committee has reached a provisional or final decision, it is typically several days or even weeks before the applicant and others are informed of the conclusion
Evans applied for a review by the CCRC last year
The 26-year-old was released from prison last year after serving half of his five year sentence for the rape of a 19-year-old woman in a hotel in Rhyl in April 2012
The footballer has always maintained his innocence
An earlier appeal against his conviction was rejected by three judges at the Court of Appeal in 2012.
Evans has made attempts to restart his career but potential moves to Oldham Athletic and his former club Sheffield United collapsed in the face of public outcry.
Source : PA
Source: PA