Check the dates.
There are zero shows at MGM announced for Dec, Aug, and Sep
4 for July
7 for Oct
5 for Nov
So I don't think it would be hard to fit it all in again...
I feel her Dad was ill in November and hence why she was silent on social media around her birthday, Xmas and New Years. She also only posted a few rehearsal vids and they were all from the same day. I feel as if she delayed it because she didn't have time to rehearse due to her looking after her Dad whilst he was critically ill in November and December.
The illness he had usually takes around 3-4 months to recover from. So coming back in March-April with new dates sounds about right, as in the statement it said he was expected to make a full and quick recovery.