The question: will the new gyro sensor be allowed? I've seen this asked before somewhere on the forums, but when looking at the EV3 SW last night I found a potentially significant advantage. One of the conditions the WAIT block has is triggering when a specific number of degrees of rotation have been detected by the gyro.
I know it's all speculation for a very limited time, but I'm really wanting to ask a philosophical question & am using this as a vehicle. One school of thought would say that having to experiment to find the right parameters to make a particular turn is an important skill for the kids, and then extending that into a general-purpose MY block is yet another important skill. Another school of thought says this is just busy work, and if the kids can accurately make turns without a lot of time spent experimenting they have more time to do something else that's important.
I think a similar conversation could have taken place (and probably did) when the NXT came out. That's before my time, but I've seen plenty of discussion on the forums about higher-resolution rotation sensors built into the motors, the ultrasonic sensor, and the color sensor. I've had many similar conversations about the use of calculators in elementary classrooms.
I'll contribute my answer: neither school of thought is totally wrong, or totally right. If the gyro is allowed, I'll have no problem letting my kids use it. But I'll still encourage them to perform experiments to make sure they understand how to use it before putting it into a mission program, and will continue to encourage multiple trials (and variations) for mission programs. I think the experimental trials needed to determine movement parameters are very important for the kids to learn, but there are plenty of other places to learn & apply that.