So, nuggets of interesting information about the next build (possibly Build 10575) are coming via none other than Gabe Aul.
It seems the build will bring fixes to issues of bad battery life and overheating faced by some on Build 10572. Though on our devices Lumia 640 XL, Lumia 525 and Lumia 540 we have been enjoying this build and Battery life has been good so far. Do let us know if you are facing any such issue with Build 10572.
@jaysanghani13 Next build has a few improvements for this.
— Gabriel Aul (@GabeAul) October 26, 2015
Thanks Nate for the tip. Cheers!!