About those rumors: I have no idea who sent them and 90% of the times they turn out to be wrong. But, it happened in the past that a couple of those were right. So I will post them today, and we all together can eventually keep track of this. If one of the sources turns out to be right than we will know we can trust it a bit more!
A7r5 might have 8K@30 FF and S35.
No 4K@60, just 30.
ILME-FX9 has ILME-FX6 style body, with same 61M CMOS as α7RV. Provide oversampling 8K/30p (FF Only), oversampling 4K/60p (FF & S35).
A7r5 has 8K@30.
100mm f1.4 GM priced at 1599$, and weight 950g, it will be the most light lens like this. (macro feature will be avable too)
FE 150-400mm f4.0