iOS 8.1.1: first update to leave Bluetooth untouched
iOS 8.1.1 may very well be the first update to leave the Bluetooth setting untouched. It was disabled prior to the update and I was pleased to see this was still the case after the reboot.
I understand it may benefit Apple to encourage users to enable it, but it has always struck me as very odd that the setting was completely ignored.
Hopefully this will be the case with future updates.
Update December 9, 2014 - After the installation of 8.1.2 Bluetooth is still off. So this seems to be the new default.