The 19-year-old joined The Shrimpers late last month after Sol Campbell was left without a senior goalkeeper. Patrik made his debut against Burton Albion and went on to play three times in Sky Bet League One, helping United to victory over Bristol Rovers last time out.
Patrik was due to remain with Southend for this weekend's trip to Rotherham but, with all football postponed for the rest of the month, the Iceland Youth International has now returned to West London.