That would be the end of Olympus as a system camera producer. Without model releases (i.e. sales), you would not be able to survive. Within two years, Canon and Nikon will have entered the mirrorless market, and Sony in the meanwhile woud share the leading position with Panasonic.Olympus is a fairly small player. Panasonic is the largest Japanese electronics maker.
Olympus could stop making cameras for 2 years
Olympus shoud have started with a two-fold body strategy (PEN plus a larger enthusiast model based on an E-620 llike design) and a quicker lens-line up with more primes and faster lenses with IS build in. That way, many Panasonic owners would have bought Olympus lenses for their bodies.
The reasons of the current state has nothing to do with Olympus' R&D capabilities (they have the optical competence already), but with the problem that they could not decide upon the future of 4/3, while Panasonic dropped 4/3 a while ago. The funny communication stragegy at Photokina shows this: releasing the E-5 and almost declaring 4/3 dead only a few days later, followed by other interviews declaring something in between. Total confusion.
--to save money or work on R&D and then come right back. They know Panasonic will continue to develop bodies and lenses, so the format will continue.
Basically it takes a lot of pressure off of them. They are going to need time to transition from 4/3rds to micro 4/3rds.
Thomas