Bulk Suspend/modify Subscriptions
There should be an option in WC Subscriptions that allows you to suspend or modify a number of subscriptions in bulk.
For example to pause all of the subscriptions for a month. Or to change the price of a number of identical subscriptions to a higher or lower price.
Brent Shepherd commented
This is now available as of version 1.4.5 released 13 Dec. 2013. :)
Likewise for us for a physical magazine published only 11 months of the year!
Geaux Technology commented
This is a great idea. We're selling a subscription for a weekly service that needs to be paused during Holidays for all subscribers.