Sorc/Sage pvp healing only slightly got nerfed. People are blowing the nerf out of proportion. Consumption with Force Surge is mitigated by 4 piece, now buffed -4% dark resilience, and a single hot on ourselves. We lose out on burst healing, but honestly pre-1.2 it was horribly broken. We can still burst, be it nowhere near pre-patch. We still top healing by a mile in warzones (those that dont suck).
The only major difference now is due to loss of double dip force bending, you'll rely on relic+adrenal+reckless innervate as your burst. In addition, you'll have to make your heals count by spell faking to bait interrupts so you can get what you really need off, instead of relying on 1.3 second DI's. So in otherwords.... you'll have to learn to play.