Haven't seen much talk about holy lately, not even a sticky for them in 5.2. I've played holy for a long time and stick with it as long as it's viable.
I've had success with a movement-focused build, which has been helpful given many encounters require quite a bit of movement. I run 10-man normal content, so your experience will vary elsewhere I'm sure.Talent Calculator - Game Guide - World of Warcraft
Since shields are inefficient for holy, Angelic Feather provides a much more flexible and powerful movement tool than Body and Soul. You can pre-drop them for planned movement, or use them dynamically whenever you would use Body and Soul.
With no healing return from Solace, Mindbender provides a superior damage and mana return for GCD investment.
Twist of Fate works very well with Prayer of Mending and especially Circle of Healing, keeping that buff up whenever healing is needed most.
The most novel idea: Using Inner Will instead of Inner Fire for most fights.
With the glyph, Inner Will adds a 16% movement buff, double what the boot enchant provides. Since the boot enchant doesn't stack with Inner Will, you're free to go with 175 haste instead of 140 mastery. As long as you can reach the haste breakpoint with glyphed Renew, it is even more mana efficient than CoH at nearly the same HPS! You can cast a rotation of (Cascade on cooldown) CoH, PoM, Renew x 4 without ever planting your feet and your mana will last forever if you're stacking spirit and managing cooldowns.
The ability to swap Chakra AND your Inner buff makes you highly flexable for other situations. Want to survive Death Blossom on Sha? Put up Inner Fire (increased AR for damage reduction plus increased healing), use Chakra:Sanctuary and blow Divine Hymn. Need to keep a tank standing the final phase of Horridon? Inner Fire + Chakra: Serenity and just chain-cast Greater Heal to refresh Renew and stack a bunch of mastery HoTs.
The basic idea is that you're now a resto druid, but with all the Holy cooldowns and utility.