Thank god they didn't smash Frost to the ground. I love being Frost as it is not that RNG dependent and I always feel I have more control. The problem later on will be that your haste will be above 100% a lot of times. Currently I have 42% haste full raid buffed. If there's a haste trinket proccing (or the legendary meta) and you have Bloodlust I am easily above 100% which obviously sucks. Currently I'm also gemmed full haste, so I could move some haste to int.
Anyway I will give Fire another try, especially because I recently got 4p T15 and the bonus for Fire is really nice. This should flatten out the RNG randomness a little bit more.