Well in one sense it will make life easier:
No more worrying "Do I pay for confirmed standby to get a chance at the upgrade, or do I save the money and definitely get on the plane, but no chance at the upgrade?"
OK - so let me test this out:
I'm scheduled for 5 pm departure IAH-BOS but it doesn't look like a I'll get the upgrade (3 seats left and though I am platinum, I am on a B class ticket). The 7 pm departure is wide open in First class.
Can I change to the 7pm flight at 7 am or 5 am? (for 25 dollar fee, of course)
Am I included on the upgrade standby list as soon as the change is confirmed or do I have to go to the airport/gate to be put on the upgrade list?