Aside from the shadow phase being majorly activated by Saturn, Neptune, Pluto, the retrograde itself is rather unremarkable (unless it’s transiting a heavyweight house, it squares other Fixed sign placements in your chart, or its your profected Lord of Year)
It only makes sextiles to Venus Gemini and Mars Libra in the retrograde/direct charts, also opposite Pluto Aquarius when it stations direct. It seems quite a social retrograde, Mercury Leo is not quiet either.
Reviewing old issues that require a central focus, something that requires full attention, getting to the heart (Leo) of the matter. Issues of pride may crop up too.
Both Venus and Mars in Air signs, with Mercury acting as a bridge for both, with softly supporting aspects, should bode fairly well for reconnecting with people from the past, smoothing over past conflicts.
Although with Mars in detriment in Libra, conflicts could be actively avoided for the sake of keeping the peace, focusing on etiquette, putting on a pleasant face whilst not addressing the real issues.
Venus Gemini again, keeping conversations light, airy, connecting through conversations, messages, texts, etc.
It may be “surface” reconciliations, the old chestnut of, “Heyyy we should meet for a coffee sometime 
” (the unwritten universal law of human civilisation dictates that this always never happens!)
Dates:
26th June – Mercury enters Leo
30th June – Mercury enters shadow at 4°15′ Leo – opposite Pluto Aquarius retrograde – trine Saturn/Neptune Aries
18th July – Mercury stations retrograde at 15°35′ Leo – sextile Venus Gemini
1st Aug – Sun/Mercury retrograde Cazimi at 9°01′ Leo
11th Aug – Mercury stations direct at 4°15′ Leo – sextile Mars Libra – opposite Pluto Aquarius – trine Saturn/Neptune Aries – sextile Uranus Gemini
25th Aug – Mercury leaves shadow at 15°35′ Leo
2nd Sept – Mercury enters Virgo
Retrograde chart:
Direct chart:
