On Wednesday 2016-03-30 at 08:00 UTC, the Entropia Universe servers will be taken offline for a patch to release 15.8.2. We estimate a downtime of 1 hour. Estimated download size for this patch is approximately 40 MB. For details on UTC time ... Source
Easter Monday is a public holiday in many places (not sure if by law in Sweden but a majority still might take the day off out of tradition). Maybe it got shifted because of that and with last week's delay it looks as if there is a new pattern. I believe they would make an announcement if this was the case.
Okay... 2 were a coincidence, but 3? And they did not bother to say a word if this is the new pattern.
