Void Ray now deals damage in three stages as opposed to two.
Void Rays already do their damage in 3 stages. A lot of your ideas just wouldn't work at all.
I'll take a shot at more realistic notes that don't have so many drastic changes but smaller changes.
Terran - The biggest issue with Terran is just how extreme their harass is early game. The idea with most of these changes is to just slow them down early a little bit. The orbital command change means you have to wait a while to get back your investment instead of instantly being able to mule. Stim and EMP are just way too extreme right now.
EMP only reduces shields by 50
Stim reduced from 50% to 40%
Barracks takes 5 seconds longer to build
Bunkers take 10 seconds longer to build
Reapers take 5 seconds longer to train
Tech Lab and Reactor take 5 seconds longer to build
Tank cost increased to 150m, 150g
Hellion cost changed to 75m, 25g, range reduced by 1
Orbital Command spawns with 25 energy
Fusion Core cost increased to 250/250
Zerg - My biggest problem with Zerg is Roaches aren't viable because they take too long to get out and cost too much to upgrade. Pretty much all of the annoying early strats vs Zerg are counterable by Roaches if they were just viable earlier.
Roach warren build time reduced to 40s
Lair build time reduced to 60s
Hive build time reduced to 75s
Galil Reconstitution is now an inherent part of Roaches
Tunneling Claws cost lowered to 100m, 100g and training time reduced to 90s
Hydralisk health increased to 90 hp
unbuffed overlord speed slightly increased
My issue with Protoss is just how long and expensive it is to tech them and how vulnerable they are early game.
Hallucination reduced to 50m, 50g and only costs 75e
Forge requires Gateway to build, build time reduced to 30s
Cybernetics build time reduced to 40s
Dark Shrine build time reduced to 75s
Templar Archives cost reduced to 150/150
Charge cost lowered to 150/150, time reduced to 100s
Blink time reduced to 90s
Psionic Storm cost reduced to 150/150 and time reduced to 90s
Immortal's increased to range 6 and armor increased to 2
None of these changes are extreme and they probably don't fix all of the problems but they move things in the right direction without completely changing the game. Blizzard is going to make subtle changes, not drastic changes.