No set date at this time. But you are more than welcome to join us in Discord for the 2nd Coordinated Network Strike Event.  

http://join.xtrabytes.chat/

We have a link for assistance if you wish to participate:

https://testnet.xtrabytes.global/

After the first network spamming event, there was an impromptu Q and A session on voice chat in the Discord.   Join us guys!!!