The in-game calendar for August has been set and updated. Please check it out. There are a few items of note regarding guild events in August:

Sunday Funday returns will host Vellitha on August 14th at 6pm EST!
Peepo’s Pals raid team will only run on Saturdays (and will probably stay in normal fated difficulty).
Monday night normal raid group is taking a break in August. It may return (depending) if Peepo’s Pals starts doing heroic fated content in September.