These are the current ongoing rebates/deals by manufacturer:

Sigma Austria posted a teaser on their Facebook page about a new lens that will be announced on February 23rd for the 2016 CP+ show in Japan. Here is the translated text:

The Techart PRO AF Leica M lens adapter for Sony E mount cameras is now officially announced:

The latest Sony a6300 camera and G master lenses are now available for pre-order:
Shipping for the a6300 should start on March 10th, the G lenses should be available on March 31st.

A new Olympus camera got registered today at the Indonesian government communications agency Postel. The original name is masked (IM001) and no additional information was published (besides the presence of built-in Wi-Fi).
Via Digicame-info
Olympus announced two new compact cameras:

Olympus Stylus SH-3 camera (replacement for the SH-2, not yet available in the US): 16MP, 1/2.3″ CMOS sensor, 25-600mm f/3-6.9 lens (35mm equivalent), RAW, 4k video, 3″ TFT LCD screen with 460,000 dots, ISO: 125-6,400, shutter speed; 1/4-1/2,000, 16.5 fps, built-in Wi-Fi (more info).



The latest rumors on the upcoming Pentax K-1 full frame DSLR camera:
Via PentaxRumors.com, pictures via Adorama

Samyang announced two new lenses from their XEEN cinema line: 14mm T/3.1 and 35mm T/1.5.
One more XEEN wide angle lens is still to be announced:
The release of two major recently announced cameras got delayed: