prefix_redirect_url_per_role.php

<?php
/**
 * Change the redirect URL depending on user role
 */
function prefix_redirect_url_per_role( $url ) {

	// Get the current user roles
	$roles = wcmo_get_current_user_roles();

	if( in_array( 'gold', $roles ) ) {
		// Redirect to specific page for Gold role
		return 'http://yournewurl.com/gold';
	} else if( in_array( 'silver', $roles ) ) {
		// Redirect to specific page for Gold role
		return 'http://yournewurl.com/silver';
	}

	// This is the default URL
	return $url;

}
add_filter( 'wcmo_redirect_url', 'prefix_redirect_url_per_role' );