Thanks to Camerasize you can get a clear idea of the lens size on your Sony A7rII (or any other E-mount camera you own). The lenses are big yes…and probably better suited for a larger A9 body (that would be nice Sony!).
Here are some more A6300 and GM related news:
New York show pics by Hugh Brownstone.
Top 5 Reasons You Will Own a Sony A6300 (PMRphoto).
10 Key Differences Between the Sony a6000 and a6300 (BestMirrorlessblog)
Sony FE G Master Series Hands on With Samples – 85mm F1.4 & 24-70 F2.8 by Dan Watson on Youtube.
The full Sony A6300 presentation page is up and running at Sony.net
Preorders (start on Feb 10):
A6300 body at BHphoto, Amazon, Adorama and at Parkcameras.
A6300 with kit lens at BHphoto, Amazon, Adorama and at Parkcameras.
24-70mm f/2.8 GM FE at BHphoto, Adorama and at Parkcameras.
70-200mm f/2.8 GM FE at BHphoto and at Parkcameras.
85mm f/1.4 GM FE at BHphoto, Adorama and at Parkcameras.
Sony FE 1.4x Teleconverter at BHphoto.
Sony FE 2.0x Teleconverter BHphoto.
March 2016 shipment for the 24-70mm FEGM (€2,400) and 85mmFEGM (€2,000).
The α6300 will be available in Europe from March 2016 priced at approximately €1,250 body only and €1,400 with SELP1650 lens. The α6300 will also be available as a kit with the SEL1670Z lens in April 2016, priced at approximately €2,250.