Leaving other discussion aside… My general feel for Holy Paladin going into TWW:
First thing to discuss is the Glimmer removal:
I really enjoyed Glimmer when it was originally introduced but Holy Paladins were very different at that time, they were coming from losing the Legion artifact and the spec felt totally anemic, so Glimmer introduced a new gameplay loop and made the spec have something interesting going on that you could play around and optimize. (All though admittedly it was very different from what Holy Paladin had traditinonally been in the past).
That said after all the changes, Holy Power being added, and specially after the DF rework too many different things and sources of healing were added and the spec only felt good when it was overpowered because there were simply too many supplemental healing methods competing with each other, each of them eating from the total “budget”
So the only way to fix the spec was to remove something, and glimmer had become less and less impactful to at that point I agree it was best to remove it.
So how is Beta Holy Paladin now:
Honestly, pretty good… It’s not my favorite version but it’s alright and pretty fun, I guess a bit on the simpler side but that’s typically how it has been for Holy Paladin. Also pretty well in-line with what the spec has been in the past in the sense of having those big and impactful single target heals that cleave trough beacon.
You could say AOE is limmited, and that’s true… But for raids that’s not really your role and being the best spot healer is more valuable than being the 4th AOE healer… For M+ where you are the only healer I think the option from having permanent 3 target cleave on your single target heals or 5-target BoV on a short CD gives you all the coverage you really need.
For the talents I feel some of the ones that used to work with glimmer and have been reworked might need a bit more work but overall I don’t find the spec tree so bad, the class tree is a bit worse imo and should be on the short list for those who could use some updates.
Now for the hero talents I feel they are honestly pretty good and supplement your core kit in a good way, right now Herald is a bit overtunned but it gives you some HoT gameplay.
Lightsmith gives a more support-oriented playstile but unlike other similar “support” type talents (like blessing of the seasons or Priest’s Oracle) I feel Lightsmith actually implements it pretty well. I do wish Blessing of the season was gone becuase you already are managing the Lightsmith stuff so having the Seasons stuff on top of that gets pretty annoying.
Meta prediction and personal choices:
I’m fairly confident Holy paladins due to the strong spot healig profile will once again be meta for Raid and that it will land somewhere in the top-3 for M+… But tunning will dictate the exact spot for those.
Over the past expacs I have co-mained a Paladin (Holy / Prot) along with my Priest (Disc / Holy)… And even when raiding “primiarly” on the Priest I’ve on occasion flexed-in the Holy Paladin for prog bosses.
So for TWW even though I have decided to drop the Priest and play Resto Shaman for Raid I’ll still be keeping the Pally on the same role (I also like to have a Tank toon for M+ and Prot Pally is my choice there).