Disney is kind of starting to enforce the arrival time you pick.
You can still arrive as early as you'd like, but now the boarding numbers aren't being handed out by order of arrival, you are assigned a number based on what your terminal arrival time is.
This is just being reported for the last couple of cruises, and it could definitely still change. Disney is really tinkering with their system to cut down on the Dream crowds in the terminal.
No matter how this all sorts out, check in online as soon as you are elligible to have the biggest selection of arrival times.
You can still arrive as early as you'd like, but now the boarding numbers aren't being handed out by order of arrival, you are assigned a number based on what your terminal arrival time is.
This is just being reported for the last couple of cruises, and it could definitely still change. Disney is really tinkering with their system to cut down on the Dream crowds in the terminal.
No matter how this all sorts out, check in online as soon as you are elligible to have the biggest selection of arrival times.