Hellbrook has about 4 short sections that warrant using your hands and feet. I don't know much else to say. Haven't seen the conditions lately. Go out and get some feedback from nature to tell you how it is. That's part of the adventure eh?
It will eventually lead to adams apple, to the chin. The chin is north facing, and there is a short section after the adams apple that'll be steep and could be icy at this time. I would highly recommend bringing crampons because making it up to almost all the way, and getting shot down cause of this ice and no equipment wouldn't be that great. And who knows, you might need them earlier than this.
I wouldn't recommend heading down hellbrook. The easiest way back down to 108 would be going up over the chin, heading down profanity (just boulder hopping down) which will lead you to the LT.