Olympus has the best thought out line of lenses of any digicam
company out there. It is thoughtful and comprehensive. What
additional lenses are you hoping for?
Without you having to answer that question here is my suggestion that
I think reflects a lot of ZD lens users desires i.e., more primes;
particularly something in the 16 or 18mm f/2 prime range, and a 12 or
14 f/2.8 prime would be nice, better yet a 9 or 11 f/2,8 prime being
highly desired.
I admit this is pure speculation..
Since they now had added AF-fine tuning to new cameras I'd expect
Olympus to start finally making/releasing those f1.X lenses. And I
would not be too surprised to see them going further than the the
typical f1.4 .. They have so much new lens tech I'd expect them to be
able to make reasonably priced razor sharp f1.2 or 1.0 at normal or
short tele range (say 20, 40 or 50mm).