Has zero bearing on my life.... I am more looking forward to the gen III bodies to further drive down gen II used prices.
Curious situation though, especially factoring in battery life. If Sony makes a new battery to give this A9 pro DSLR battery life we can kiss whatever weight advantage MILCs had goodbye. Beyond that I'm struggling to see the benefit added over pro DSLRs within the context of typical pro DSLR use (sports and wildlife). Silent shutter mode maybe?
You could reverse the question and ask what advantages DSLR's have?
EVF lag and AF speed/accuracy is catching up quick. MILC's will always have the advantage of live-view to get the correct exposure and WB settings. And you get killer features like eye-AF and focus peaking. Also, wide angles lenses will be smaller.