First post updated. We've got some very nice looking Tier 8 set bonuses:
* NEW (Mar. 20) 2T8 set bonus: Reduces the cooldown on Riptide by 1 sec.
* NEW (Mar. 20) 4T8 set bonus: Reduces the cast time of Chain Heal by 0.2 sec.
* NEW (Mar. 20) T8 Restoration Relic -- Increases the base amount healed by your chain heal by 243.
I'm not sure if losing the 4T7 bonus to Chain Heal is worth getting -1s on Riptide's cooldown in a general raid healing situation, although it obviously fills a niche role in high movement fights or fights in which CH isn't optimal. -0.2s cast time on Chain Heal, however, is a very solid bonus that should bring CH to ~1.7s cast time for a haste-focused set.