I'm impatiently waiting as well. I finally subbed for the first time to get access to the test server. Hope it comes soon. I'm also excited to see what, if any, changes will be included for other powers. I have sneaking suspicion that nature, electric, and hardlight might also get buffed a little.
I am a little antsy as well. Not only do I want to see what they do for fire, but I also wanna see if there is any other parts of the update I can be excited for