Below are the Nikon D3400/3500 rumored specs:
- No 4k video
- SnapBridge compatible
- 24MP sensor
- The D3xxx line will remain DSLR and will not go mirrorless
- entry-level APS-C DSLR
- Announcement before Photokina, delayed because of SnapBridge issues
Nikon D3300 was announced in January 2014 and now is the #1 Best Seller in DSLR Camera at Amazon US.