I was doing a bit of reading and came across something interesting.
It's quite well known that in the mid nineties honda were racing a Single Cylinder 400cc Baja / Rally bike.
It was the Honda EXP-2 400cc ARC...it could be ran using either a carb or fuel injection.
This bike won it's class and came 5th overall in the Dakar Rally.
There was also the honda CRM 250 AR Prodcution bike (Japan only).
http://www.honda.co.jp/factbook/motor/CRM250AR/199701/There was the 02-07 CR250 motocrosser that had a servo controlled exhaust valve and was case reed inducted just like the above bikes.
It could clearly be seen that they were trying to move in a different direction with the servo operated valve on the CR250.
This is all very interesting but I found something I hadn't seen before.
It was an online book / pdf about engine technology and in it was a paper from Honda R&D.
They have experimented successfully with AR technology but they also did this in combination with PDI (pneumatic direct injection).
They had this technology working at the beginning of the century if not earlier, who knows what they had planned for the two stroke motorcross line had the four strokes not come along.
I think this shows that if two strokes do make a real comeback then Honda have the tech ready and waiting!
They're just a sleeping giant.