That fast? I thought we're going to wait for at least a month or so before her 2nd sea trial.
Probably just a short sail to test the adjustments/calibration to onboard systems after the last sea trial.
To be fair the ship spent a decent amount of time in fitting out after launch and before the first sea trial, so it's possible it is in a relatively high state of completion.
It'll be interesting to see how things go after the second sea trial, because we will probably have a better indicator of how successful everything is.