Now some of this was brought up in a previous discussion and it didn't quite fit there in the end overall so I deiced to make its own topic about it.
For me I would love to see alternative steering systems with Technic models. This will add more realism to its functions and include several benefits like having the ability for the tires to return to center due to the weight of the Technic model alone. Think about it, this would remove the need for having that extra stuff for a steering system that can require a whole host of methods that include the use of rubber bands or springs for the wheel return to center. It is now accomplished by weight and the entire LEGO model composed of that.
I remember one of the First Technic sets I got as a kid the 8808 and it is funny to me today to still see this rack and pinion steering system still be the dominate choice when it comes to steering elements. Below is a show piece I made to demonstrate another style of steering the Pitman arm steering with a more accurate axle alignment with KPI. I even include a steering wheel for turning function. The way the wheel turns just feels more realistic then the way a rack and pinion steering wheel would feel if you where to turn them.
I also want to show a pneumatic steering idea I had. It works but how to remotely control it that is where the problem is.