The Swedish Magazine Fotosidan (google translation here) interviewed Setsuya Kataoka (General manager Olympus Imaging Corp). And there is some talk about the future Olympus products:
1) Right now Olympus is considering whether to develop a bright super telephoto lens, or a super-telephoto zoom with a little lower brightness.
2) When the pro series is getting full, it may be necessary to develop a bit more specialized or extraordinary lenses, such as lenses with ultra-high brightness.
3) No Tilt Shift lenses are coming
4) Working to update the IS for new astro-photography features.
Let’s go with the f/1.2 and f/1.0 prime lenses Oly! We already saw your patents on those ;)