Nope I would be giving anything up it seems. I never wanted for much more in quality of the lenses with M 4/3 except faster zoom lenses and usable high ISO when needed. The primes I owned were all excellent (20/1.7 and 45/2.8.) It seems these issues have been sorted out lately. I could be more than satisfied with the 25/1.4, 12-35, 35-100, and MAYBE a 75/1.8 or 100-300.
My A77 w/grip kit consists of the 16-50/2.8 and the 70-200/2.8. Both are fantastic lenses but certainly a chore to lug around with my M kit. The 70-200 alone warrants that I use one of my larger bags unless I only want to bring one body and a P&S.