An expansion MyLeague with the Sonics sounds amazing.
1. I'm doing my best to use names that have commentary audio because I, like you, can't stand hearing nicknames. I would probably have to simulate a few more seasons and play more games to be sure, but you shouldn't hear many of them. While I try to use names that have commentary audio, I also don't like the idea of reusing certain names just because the audio plays. For example, I'd hate to use a somewhat unique last name like Lillard or Ibaka or something just to have the commentator say a name.
2. I would probably recommend playing through once without randomizing, because I've tried to create a couple of interesting busts. My understanding is that randomizing will change their peak start/end and I don't feel like you're going to see many true busts with it randomizing. So I'd say play through a franchise once without randomizing, and then randomize the next franchise you play through because you'll then have an idea of who the busts will be. I've also toyed around with the idea of releasing new versions of the draft classes every so often so that the outcomes vary a little more.
3. Great point. If you see my "Draft Guru" posts on here, that number is supposed to represent one draft expert's estimation of the potential of those players. They definitely won't come into the league above an 85. I believe at one point while creating classes for 2K18, I created a guy who came in at 83 to 84. That was like a once in a generation player. If I put a guy in at 82-84 this year, you'll definitely see a storyline talking about him potentially becoming the greatest player ever. One rule of thumb I try to use is that there shouldn't be more than about five players coming in rated above 75 unless it is an outstanding draft. In addition, there should really not be more than 15-20 players who will become really good starters. The biggest thing I'm considering when releasing these draft classes is that I want the progression to feel authentic. One thing I noticed about 2K19 is that rookies start to progress quickly, even before their rookie seasons. I've adjusted to this by bringing down starting ratings a bit. Still, you'll see some guys getting to the high 80s by the summer after their rookie season. That also feels pretty authentic, especially when you look at last year's rookie class. Tatum, Simmons, and Mitchell are already superstars. For the best of the best, it shouldn't really be a 5 year grind to become highly rated. That being said, there are also going to be classes where only one or two players ever get to a superstar level. I think the classes this year are definitely mindful of all of that, and if anything plays any differently please let me know and I'll make some changes.