Only if RPM lets them, which they likely won't if in a contract.[DOUBLEPOST=1386078258,1386078034][/DOUBLEPOST]
Possibly, there is one thing I am kinda worried about and so will have to look into further.
From the networks end when you press that button, they have the option to deny you or unlink your there and then.
Now the issue with the second option, is unlinking for networks is not something that should be done without unclaiming all the channels videos first (or else they'd still make them money off of them if the channel went to another network), traditionally the network would have bulk unclaimed all this channel's videos and the pressed unlink via the cms.
The worrying thing about this button, is will networks be releasing channels without unclaiming their videos because I doubt the button/system does it automatically.