This there now a chance that your children will not be channelers? Playing with a custom female sovereign, and my first child just grew up, a male, and he is not a channeler. He does have his father's 1 tech point a turn bonus, but that is it. I cannot remember ever having my children failing to inherit the channeler trait before. Even the grandchildren always had it.
The city/pioneer spam does need to be addressed. On one side of me I have the AI building cities all over the place, with no respect to resources, terrain, or much of anything else. There is one AI city that is squeezed between a high mountain range and the sea, on a strip of land one tile wide. If the AI had moved a few more spots, the area opened up and there is a resource there. On the the other side of me, the AI is trapped with limited space, so there are 6-8 pioneers sitting at the edge of my borders, waiting for who knows what.
Also, the generated mana seems to be doing something funny. Your sovereign generates 3 mana, and each shard with a shrine on it adds one more, correct? So with 2 shrines, you should be generating 5 mana a season. I am currently only generating 3, I have no spells, enchantments or summoned units, so not sure what is happening. Is there (or is there going to be) a screen that shows you the sources of mana, and what you are expending mana on?