Just found this on Facebook and been confirmed.

After the meeting today with the authorities and the unprecedented response from the biking community we have been asked to close registration one week early. It will unfortunately NOT be re-opening.
We would like to reassure everyone that the ride IS GOING AHEAD W......ITH the FULL suppo...rt of the police and local authorities. We have spoken to a few local businesses who are all looking forward to the day. ALL bikes will be riding through Wootton Bassett no matter what you may have heard.
Plan details re: routes, times, wristbands, will be made available in document format soon. We have another meeting with the police next week to discuss the finer details.
We can confirm that we will NOT be riding on any stretches of the motorway.

Regards Keith