I�m thinking of upgrading my system to 2x DSP5200SE and a 818v2. Is it possible to run the 818v2 with SpeakerLink to the main speakers and analog output to my two active analog subs for two-channel audio and the 568 for Blu-Ray/TV 5.2 setup?

The subs have two inputs so that shouldn't be a problem.

861v8+ID41, 3x DSP5200SE (RLC), analogue rears, 2x analogue subs, Oppo BDP-81, 568, Linn Sondek LP12, Stax SRM-006tS, M80, MS200, AppleTV4k.