It may be useful in future if arbitration committee makes use of those involved on the newly formed mentorship group and nominates those who perform well as informal mentors along the lines in the Cool Cat mentorship, which effectively amounts to a controlled probation.
In the Cool Cat case, disruptive editing by Cool Cat on articles related to Turkey and Kurds (for instance, persistent pushing of a point of view) may be dealt with by blocking.
He has three mentors who can ban him from editing any article if necessary, but they also act as a court of appeal against blocks, with the power to alter or clear a block made by other administrators.
In my opinion as a mentor the effects have been helpful, enabling this editor to perform useful work for Wikipedia while checking potential problems--some of them unforeseen at the time the mentorship was set up--as soon as they arise.