Something I did recently was I started my first NG+ run, but I'm doing something different.
I made a character specifically for NG+. This meant I only did mandatory bosses the first time through. ("Speeding" through the game like that, I think i beat the game around level 100) But the big thing I did was, before I started my NG+, I sold ALL my gear, weapons, rings, and clothes (except for un-upgraded versions of the cloak set you start the game in) and got rid of most of my other items (I bought 99 lifegems, firebombs, and knives, and kept my lockstones, silky stones, and spices. Everything else went away to gavlan)
So I basically started the game as if NG+ was the regular game, more or less, with a character that needed to start fresh and work their way up in gear, rather than powering through NG+ with a +10 lightning greatsword, I'm struggling with my regular weapons.
It makes the changes that much more powerful, because i can't handle them easily. It makes the game feel more like DS1, it makes the game feel more like the DLC. There's tons of areas of the game where "blank" spots were actually supposed to have enemies show up or ambush you. It makes the game feel so much better that, were they not all red phantoms, it would have done the game a service to let you start the game on "normal" and "hard" mode.
starting the game in ng+ things betwixt without proper weaponry is SAVAGE. you have the falconers just killing you over and over, stalking the entrypoint into dranglaec, and the two red phantoms that hop down off the rock on the way to the cabin....everything about NG+ improves the game. The way to chapel of blue feels much more interesting because knights of blue are littering it. I wish they'd made them blue phantoms, but having them be red adds to the stuff maughlin was talking about them with the knights being dirty. the cliffs leading to the skeleton lords make much more sense with the additional enemies where they are, and even covetous demon has enough health to be slightly threatening now.
Basically, NG+ should have been the experience we all had, after playing it, it feels like the regular game was toned down to make it more appealing to mass audiences, but there wasn't an option to play the "real" game from the start. It actually does alot to make the game feel more in line with the dlc, but you kind of have to go into NG+ without any of your NG1 gear for it to be effective, which kind of ruins it.
can you imagine how great it would have been if the first thing that happens in DS2 was "you take a few steps, and then you get killed by 4 falconers" it would have felt narratively great and been a good gameplay moment/troll.