I have a few suggestions, which may or may not be repeats of earlier suggestions, but please bare with me.
On normal and higher difficulties I've found it can be really, really hard to keep my people happy. Might I suggest adding at least one point of happiness to things like the Opera House, Museum, Radio Tower, Hospital, and maybe a few other buildings? I mean, it makes sense they'd provide at least some happiness, right? I've also found that AI opponents just cant cope with all the unhappiness on Normal Difficulty and Higher and my cities get swamped with their unhappy immigrants.
Actually, is it possible for me to just edit a game file somewhere and add those myself? I have NO idea how civV modding works, so...
As for electricity, yeah, I think Electricity would be a good addition. If possible, perhaps hygiene as well, which is where Sewers, Hospitals, etc... could come in.
I'd also like to suggest that some buildings stop becoming available at certain era's, like the Shaman's Hut and Constabulary, the latter could be outright replaced with the Police Station at later era's in cities where a Constabulary has not been built yet.
When starting a game, the option that let's you adjust the resource abundance, is this just the new resources like Jade, Berries, Maganese, Oak, etc...? Or all resources including vanilla resources like Wine, Silk, Stone, etc...? Because if it's the latter, I'd like to suggest an option, if possible, to have several adjustable resources options, one for vanilla luxuary resources, one for vanilla strategic resources and one for the Call to Power resources.
Lastly, this may not be the right place for this, but is the Call to Power mod compatible with the City State Diplomacy Overhaul? I remember the two mods used to be compatible, but using the latest versions of both, Diplomatic units from that mod cannot be trained yet the Diplomatic buildings that mod adds can be constructed, and the City State Gift of Gold option being disabled by default in the CSD Overhaul seems to be deactivated. That is, the CSD mod disables the option to give gold to City States for reputation, so you have to use Diplomats, but with the Call to Power overhaul, the option to throw gold at the City States is mysteriously active again. The CSD mod is quite popular, and is just a good idea period, so perhaps making Call to Power compatible with it would be beneficial.
Of course, like I said earlier, I don't know how modding works, so my suggestions may just be the fevered dreams of a mad man... and I hope I have not annoyed anyone with my suggestions.