Well there's no way this beta test will be 10 seasons, so you can forget that.
Last beta test (when potential was first rolled out iirc) was quite disjointed. As in there was one round of recruiting for the entire beta test. Then with those players and assembled teams there were like 4 or 5 full seasons played at random times. For instance, the first season like 3 games were played a night. Then bugs were determined and tweaked. But later on in beta testing, without any warning, a full regular season was simmed overnight. That happened a couple of times. It never went as far as postseason play or anything.
We'll see how this one goes.