Awww. I love that even Damian is proud
obviously they are growing close (Like all Bats and Supes should be)
I actually know a few scenes with him and Lois, but they are mostly on the first arc on Action when Diana is helping them get away while Supes beats Doomsday. I wish the 'human' part of Jon that would be Lois/the Planet wouldn't be so ignored, at least we may get some Jon and Lois moments with Jon getting to know Sam Lane (hopefully). I also would like to see what human career would interest Jon (even if he is very young). Maybe he wants to be an astronaut
or a journalist like his mom and dad.
I haven't read One Million! But for what I've heard is one of my ideal 'endgames' for the DCU. I like the idea of a dystopian future, but not that all futures are dystopian futures. That's why it bothers me so much that all the Robins 'failed' to be Batman in every endgame like Titans of Tomorrow or Batman 666. Damian and Tim could be great Batmen if it came to it! Hell, Jason would be a good Batman if he left the guns at home. I personally wouldn't mind seeing Damian as Batman, but I also like the idea where he finds his own persona and decides he doesn't have to be Bruce or Ra.
Diana is...complex. The idea with Steve was a bit weird, yes, and it made him unnecessary long term (not that I mind, I love other supporting character in the Wonder Verse more, but still, poor guy, him and Etta got the short end of the stick) and despite everything...I consider that run of Wondy one of the best out there, though the bad things stayed in the long run, unfortunately. Agreed that WW needs a second book, hell, I'm developing my own wonder verse right now. Byrne's job on WW isn't as hailed as when he worked on Superman or in Uncanny X-Men, but he created Cassie and....that's the only thing I'll give him credit for. I know you have a lot of recommendations on your list, but I'd definitely add Rucka's first run onto your to-read, this run was fantastic, but the first one was incredible (imo). It's actually my second favorite WW run, and nice that you're reading FF! I am as well, but I'm in the very early issues with Lee/Kirby, I'm considering getting the Hickman run, but I don't know if going in order.
Speaking of the FF, there is a comic named Franklin Richards: Son of a Genius, that if DC were smart would do something similar with a little!Jon, for younger audiences.