What kind of DSLR will be the successor to the Nikon D3 series? Here’s a clue, it won’t be the D4. A quick glance at other models confirms the fact. Panasonic have the LX3, and skip to the LX5. Olympus have the E-3 and E-5, but no E-4. Sony have a NEX3 and NEX5. A quick scan through all the recent camera releases at DPReview reveals a few 40’s and 4000’s but no 4’s.