They probably never will tho... that sequence was premium stuff... it's not the sort of thing that's gonna happen every series, and honestly it shouldn't or else the DD hall fight would lose its awesomness.
One thing I noticed about the fights is that they're not particularly brutal like DD's... Danny is more of a "good natured" fighter, not killing or badly maiming anyone, and instead opting to incapacitate his opponents without breaking all their bones, like DD would. I think they set that tone for the fights right off the bat when he gets past the guards in ep1, and throughout the series there's about one shot that's quite brutal, the spike fist/iron fist clash, which is more supposed to show the strenght of the Iron Fist rather than be brutal, I think. So yeah, Danny's fighting style is definetly more kung-fu-ey in that it's more like a dance than an UF match =P
That's not to say that they could've definetly made a better job in some parts, particularly in the editing dpmt.