It means that there was another phase after Islamabad phase 2 last year, because Islamabad phase 2 ended on 10th April. My friend who was allocated in
OMG appeared on that day.
If there was another phase after Islamabad phase 2 last year, then there must be another phase this year as well. It will take at least 1 week, if not more. Since Islamabad phase 2 will end around 10-15 April, we can safely expect the result in the last week of April, or in the first week of May.

However, I don't think FPSC will be able to compile the result within 2 or 3 days after the final interview..