Venus Optics has a teaser on Facebook about a new Laowa lens that will be announced at Photokina. The description and hashtags used could indicate to something related to E-mount:
"A NativE SurprisE. To be revealed in Photokina. #photokina #laowa #surprisE #nativE #compact"
Venus Optics currently has several different Loawa lenses designed for mirrorless and DSLR cameras.