It is quite common for formats not to be released all at the same time. If epubs are usually available for your language, the July August one will probably come soon.
In case it doesn't come in time (say toward the end of May...) import the English one, in Settings - LMM Meetings - 'Schedule' tab, find the weeks concerned. Open the meeting in your language in wol.jw.org or jw.org and replace the English entries by copy paste. That sounds a lot more work than it actually is.