We will have to wait and see what happens, but I'm putting Plan B and Plan C in place. Since our hotel is near Taksim Square, we have opted to switch hotels to one in the more "touristy" Sultanahmet District.
I've been so focused on what's happening in Istanbul, I've have very little time to read much news about the Venice Biennale. Plan C is in case things get really rough in Turkey. We'll stay longer in Venice and then fly to Greece instead.