Olympus will allegedly announce the M.Zuiko Digital ED 12-45mm f/4 PRO lenssoon. Here is the full Olympus 12-45mm F4.0 PRO Lens press text.

This is one of the lenses of three that is announced in the Olympus M.Zuiko Digital Lens roadmap. The ultra-compact M.Zuiko Digital ED 12-45mm F4.0 PRO lens has a filter size of 58mm and weighes 254 g.
…
Read full post here:
https://www.dailycameranews.com/2020/01/full-olympus-12-45mm-f-4-pro-lens-press-release/