Alot of these recent rule changes are to avoid injury. I'm fine with the "hybrid" icing, even though there are plenty of times they pretty much call it like no touch before anyone get's to the line.
I feel like alot of the recent rule changes (past 10 years) are to speed up the game and prevent injury. Well, instead of rewriting the whole book and making your game even more convoluted, why don't you just slightly increase the ice size?
Olympic ice is 210'x98' wide. NA ice is 200'x85'. Why not increase the ice to 205'x90'. A small change but enough on either side to free up some more room.
This will get the fast guys more dangerous creating more scoring indirectly. Instead of increasing hooking and obstruction so we get more PP scoring, a faster game and keeping defenders honest could increase scoring as well. Refs would have to keep defenders honest with interference, but they are really consistent at holding a benchmark.
This will help free up space for guys to avoid getting hit, possibly less concussions, just a faster game without calling a million penalties.
I think the game can be opened up a bit. Since every hit is just about questionable now, this would maybe hinder power forwards and grinders, but hey they can adjust since we don't want anyone getting hurt.