Terran will still be very powerful and Zerg will still be too weak.
Terran rocks on every single aspect:
i. All-around-units: Thors, BCs, marines. Kill both air and ground. Only race with t1 both air/ground ability.
2. Biggest range: Siege tanks and Vikings have the biggest range on the game.
3. Best a/a building on the game.
4. Best scouting with satellite scan which is way to OP, canceling burrowed roaches, or DT harassment. Also they can have early warning with the 2nd type o tower.
5. Best resource gathering with MULES.
6. Best spell-casters with Ghost's devastating EMP vs Toss, and Raven's arsenal vs everything. Who else has a spell-caster who cancels the other spell-casters?
7. Best t1 - t1.5 combo (MM, MMM combinations)
8. Best and more harassment units than anyone: Banshees, Helion, Reaper
9. Strongest t3 units: BCs beat just everything from Carriers and Voids to Hydras and Stalkers (hope the patch will fix this though).
10. Mobility: You build your Command Center in the safety of your base, then move it everywhere.
11. Safety: The only race that has "door" for its base.
I feel pity for the poor Zerg. At t3 they have NOTHING versus heavy units. Ultralisks sucked anyway, and Corruptors/Guardians are ground or air only. The only patch that could make any sense, is the one that will give ultralisks the ability to fly..