It looks like GBX noticed that the vast majority of players who own COD or TF2 as well as DNF are still playing COD or TF2 as their multiplayer platform. Having played the single player DNF and sampled the multiplayer DNF there is no desire to switch from our addiction of COD or TF2 multiplayer for a multiplayer experience that we grew out of 12 years ago.
As for DNF being good or bad...it's all subjective. DNF is a good game...at least I have not experienced any game crashes or technical flaws. The game really does have a 1990's game design...where the goals are nothing more than go from point A to point B so you can achieve some unrelated goal and see what the next section has in store, but we all knew that going into the game.
Would another Duke game be worthwhile to produce? Sure! But, only if it's story and gameplay design is richer and more polished than DNF. Instead of loads of one liner jokes...there should be at least one or two in each section that actually pertain more to the Story. The one liners in DNF are just jokes with one or two Gameplay related quips thrown in. DNF was a good attempt...and I am really glad that GBX et. la. finished the game for us. And, it does look like the revenue did pay all expenses and made a buck or two.
But, let DNF fade away...the horse made it out of the barn...we rode it for the fox hunt...caught the foxes and laid them...and the horse made it back to the barn. We can pull that horse out of the barn and chase some foxes every now and then for the grins. But, trying to keep the hunt going continuously with DLCs for a decade's old game platform just isn't going to work. Instead of developing another DLC GBX et. la. should start work on a sequel, prequel, or whatever.
Let's Rock!