Yes. Not long to wait now (still seems like ages), but the Version (FW) 4.0 Manual for the E-M1 is now available for download. http://www.olympus.co.jp/en/support/...em1_ver4_e.pdf (& also the E-M5 Mk II FW 2.0 too) found here. http://www.olympus.co.jp/en/support/...l/pen.cfm#body
Essentially it's the Version 2.0 manual with an extra chapter 15 titled 'Additions/modifications by firmware update' which seems quite nicely set out.
Now we can read up on the coming FW updates due on the 26th November in the manual.