Greetings, Kinnies!
Yesterday (7/7/14), Sapience posed a notice to the Lotro Forums that lists the Turbine Events for the next 3 months. Please bear in mind that this schedule is Tentative, and is subject to change at any time. It will, however, be a useful guide to Turbine Events for the next few months.
According to the current listing, there will be no festival in July. Likely, this is because of Update 14's release this month. The next festival will be in early August. Those who are more familiar with the festival line-up will notice that the order is a little different from past years. Again, this is likely because of the update.
~Lerillos