Despite all their years of training and practicing, many NBA players are still significantly better at using their dominant hand than they are at using their weak hand. Player handedness impacts many elements of basketball: dribbling, passing, shooting, layups, dunks, post moves, etc., but basketball videogames continue to ignore its effect on the sport.
If you look at other sports videogames, FIFA has a "weak foot" rating. MLB The Show has different hitting ratings for every batter in the game, depending on whether the opposing pitcher is left-handed and right-handed. Next year, NBA 2K18 needs to make handedness matter. It is a feature that could be easily marketed if the cover athlete was someone who's known for dribbling/passing/finishing well with both hands.
NBA 2K's controls have allowed users to pick which hand they're dribbling with or finishing with for a few years now. But that user decision currently has no impact on the athlete's ability to successfully perform your button commands.
What if every player in NBA 2K18 had different ratings for their weak hand actions and dominant hand actions? This would be a big project for 2K's roster makers to take on, but as detailed as NBA scouting is these days, I believe it would be possible to get reasonably accurate ratings for the entire league.
NBA 2K18's MyPlayer archetypes could also give users the choice of having a dominant hand or being equally skilled with either hand (ambidextrous).
Once this system is in place, it would change how users approach offense and defense in all of NBA 2K18's modes. Proper shading that takes away the ball handler's dominant side would become more important as a defender. And setting up offensive plays that put your scorers on their best side of the floor would matter more.
Here is how I would rate the MyPlayer archetypes:
Playmaker
Ball control -- 95 dominant, 75 weak or 85 ambidextrous
Passing -- 95 dominant, 75 weak or 85 ambidextrous
Speed with ball -- 95 dominant, 75 weak or 85 ambidextrous
Slasher
Driving layups -- 95 dominant, 75 weak or 85 ambidextrous
Driving dunks -- 95 dominant, 75 weak or 85 ambidextrous
Floater -- 95 dominant, 75 weak or 85 ambidextrous
(it's time to give floaters their own rating instead of grouping them together with the shot close rating)
Post Scorer
Post control -- 95 dominant, 75 weak or 85 ambidextrous
Post hook -- 95 dominant, 75 weak or 85 ambidextrous
Standing layups -- 95 dominant, 75 weak or 85 ambidextrous
Standing dunks -- 95 dominant, 75 weak or 85 ambidextrous
Lockdown Defender
On-ball strips -- 95 dominant, 75 weak or 85 ambidextrous
Passing is the only basketball move on that list that doesn't have left-hand/right-hand controls at the moment in 2K17. But if the right joystick passing that's already in the game (activated by holding the right bumper) was altered, that problem could be solved for 2K18.
If you imagine that your right joystick is a clock:
12:00 = two-hand overhead pass (travels slower, higher, and farther than a chest pass)
1:30 = right-hand lob pass
3:00 = right-hand zip pass (a hard and straight pass à la John Stockton)
4:30 = right-hand bounce pass
6:00 = two-hand chest pass (travels faster, straighter, and shorter than an overhead pass)
7:30 = left-hand bounce pass
9:00 = left-hand zip pass (a hard and straight pass à la John Stockton)
10:30 = left-hand lob pass
You could "preload" your pass and turn it into a touch pass by holding the right joystick in the desired direction before the ball hits your hands.
The left joystick would still be used to move your white on-court circle and select your pass recipient, just like any other form of directional passing.