Well it seems confirmed, ACER have decided to scramble the sections this year. Harder or easier? Think that depends on the student. The pacing will certainly be off, you could spend time going through the test and doing all the section 3 questions together (this is now allowed) but will this waste time or be of benefit? Also without section restrictions, you can answer in any order you want. Good for the scatterbrains and for students to do their best section first (or save it till last). Maybe not so good if you were used to the sections being in order?.
Main thing as always, don’t panic or stress, just take it in your stride. This is the way it is now. You can do it!