Back in July:
Lumia 850*:
Qualcomm Snapdragon 410 MSMM8916 4xCortex-A53 cores @ 1.4GHz
Adreno 306 GPU
1GB RAM /16GB + micro sd
GSM HSPA
5″ Screen 768?1280 GG3
10 MP 3520?2640, Pureview, Zeiss optics, flash + 5MP ffc
Wi-Fi 802.11 b/g/n, DLNA, hotspot
BT A2DP, apt-x
2650mAh battery
GPS IA-GPS GLONASSL proximity, luminosity, led notification
Lumia 750**:
Qualcomm Snapdragon 410 MSMM8916 4xCortex-A53 cores @ 1.2GHz
Adreno 306 GPU
1GB RAM / 8GB + microSD
GSM HSPA
5″ Screen 720?1280 GG3
8MP 3264?2448, Zeiss optics, autofocus, LED flash 1080p@30fps + 5MP ffc
Wi-Fi 802.11 b/g/n, DLNA, hotspot
BT v4.0, A2DP, LE, apt-X
2650mAh battery
GPS (A-GPS GLONASSL) Accelerometer, proximity, luminosity, led notification
Both phones were (SUPPOSEDLY) cancelled as Microsoft's strategy has changed. Microsoft wants other companies to manufacture devices with W10M and MSFT itself will be focusing on software. However they will be producing quality devices, just not as many as Nokia.
Now:
Lumia 650*** (Q1 2016):
Snapdragon 410
5'' 720p
1 GB RAM / 8 GB + Micro SD
Surface Phone (Q4 2016-Q1 2017)
Intel Atom X3
5,5''
Improved continuum, WIN32 apps compatibility.
High-end 9xx/XL Lumias with Snapdragon 820 (Q3-Q4 2016)
* & ** & *** - no specifications were confirmed at any point.
@ all release dates are just rumors.
IMO: Wait 9-12months and get a Lumia 950/XL for half the price or get a L930 now.