Would be interesting to see what they would get using the new Phanteks TS140
I have a set of the new PH-F140HP fans. Very nice! Only complaint is they are not PWM. Still have to use adapter.
You can see the new black blades are a little bigger with smaller fins on them and bigger motor housing; 4 motor braces instead of 3; housing mounts and corners are different with a new rubber mount.
Running on cooler with PWM adapter with one fan I got 745-1320rpm; with 2 fans it's 465-1295rpm
To my ears they seem a little quieter but hard to tell.
I'll keep you all posted of anything else I find out.