It will not. Holy was already capable of bursting extremely high in later DF. But you can’t maintain that DPS unless you’re fighting large packs the entire dungeon, only committing your Apoth to DPS and never fighting a ST boss somehow. You’ll fall behind so badly on ST that you’ll lose a good third of your DPS in the overall dungeon.
And, you know, if you ever had to emergency heal anyone in that theoretical 2 healer setup, you immediately lose DPS.
Yeah. Double-healer would never be really optimal, I’m just vaguely worried it might be considered somewhat viable. And as Caithyra mentioned, we’ve seen some pretty wild swings and buffs regarding our DPS tuning for the past few years - enough that I’m not confident the developers have a great handle on how to model our expected damage output.
So far holy-dps is absolutely only a meme-build because of the single-target thing. Hopefully it stays that way so we can have fun blasting in delves/dungeons.
We’ll see as the PTR keeps iterating. (Please let them keep iterating. 
If our late-by-an-expansion rework was just one set of changes with no accounting for feedback I’m going to tear out all my hair.)
Yeah what I mean is to make it viable you’d have to have GREAT communication with your other healer - presumably also a holy priest (because you need very high damage to make it near a real group’s DPS) and be rotating your cooldowns perfectly together both pack to pack, and during boss to make sure that you’re both optimally taking over healing at the right times. And this is for both of you to do 1.1-1.5 mil DPS in a patch where the DPS are doing around 2mil. So take one of the healers out and replace them and there’s really no clear advantage to just your standard average group.
Being possible to clear a +10 or something is one thing. But you wouldn’t actually be able to challenge super hard keys with a comp that shares as much (terrible) class utility as double Hpriest without some crazy communication.
I do expect some iteration, I just don’t think they’ll wildly change damage stuff for healers anymore. They seem pretty content with each healer’s damage rotation except maybe disc/monk, since they’ve been keeping them relatively the same for 2 expansions.
Can we no longer do Apotheosis, Chastise, Holy Fire, Holy Fire, Holy Nova, Chastise, Holy Fire, Holy Fire, Holy Nova, Chastise…?
It’s 3 casts to reset Chastise w/ LOTN and Apo so that’s feasible. Also, you can keep extending Apotheosis, and that gives you a longer dps uptime.
How long were you dpsing for? You can pull well over a million for 3+ minutes without running DMG gems in that ring on those cleave dummies.
You’d never run two healers. Dps classes can pull 14 mil+.
3 min in my tests. 1mil is peak potential, but in actuality it’d be more 30-50% of that in a real dungeon scenario. DPS also drops like a rock in single target damage scenarios.
Oh ya our single target is very bad. A good buff to shadow word pain would go a long way with that.