What can expect from Sony at Photokina 2018 ? Sony currently has no new camera codes registered, so we may not see any new Sony cameras (a7S III, a6700, a77 III, RX1R III) within next 1-2 months. But we may see some new FE lenses around this Photokina.
Polish website Optyczne recently paid a visit to Sony Japan, and had an interview with Sony managers from Sony Japan. According to the interview, Sony currently is developing longer telephoto full frame E-mount mirrorless lenses in the near future. As rumored before, Sony may release FE 135mm lens and FE 400mm lens in 2018.
A source told us that Sony is currently working on several super telephoto prime FE lenses for Sony Alpha full frame mirrorless cameras. Sony is rumored to announce their first full frame professional mirrorless camera next year (Could be named Sony Alpha a9), so release several super telephoto prime lenses are very possible.