Stephanie M Johnson. IMDB says she was responsible for most of Velma:

Sucks, too, because Tate is absolutely someone Hank wouldn't approve of, but the way he acts and the arguments Stephanie puts in his mouth are completely out of character. (for example, one Evil Incel was mad because he got "friend-zoned", which Hank would never approve of. While he's happy to be "friends" with certain women - mostly Peggy, who obviously
isn't a friendzone relationship - the only woman who he'll let unburden her emotional baggage on him is Peggy, and even then he usually either blanks out and nods politely, or gets uncomfortable and tries to change the subject. Hanks advice to the incel wouldn't be "if she doesn't like you then keep letting her tell you her problems because that's her choice", it would be "move on you idiot, stop crying like a baby, and find a good woman who WILL marry you")
Part of Connie breaking up with Chane did seem to acknowledge that the “open relationship” thing was heavily flawed compared to what she thought it was. It also seemed to be partly a reaction to her parents relationship, and Peggy did reassure her on that front.
Sort of. There are several parts throughout the season which seem to indicate that "open relationships" are just a verbose cope to try and justify being fuck buddies while also maintaining an air of ethical superiority, which is fair enough. Although I'm not sure that necessarily means the writers think poly relationships
are bad per say, and it certainly doesn't change the fact that several of the writers are getting off on it.
Connie's arc this season was realizing that she wanted more out of her relationships than getting dicked by an entire fraternity, and I hope they stick with that, although I'm also pretty sure they'll find ways to throw a wrench in Bobby and Connie's relationship in future seasons (because drama, if nothing else) and I really hope it won't involve her going back to the poly lifestyle. It was funny when it was just Dale and Nancy, and it wasn't in tons of shows and all over the internet, but at this point it's just tiresome.
You're probably thinking of Gracie, Luanne's daughter.
The show hasn't addressed that yet.
That could be it, yeah.
From what I understand, they're planning on leaving Luanne unaddressed, which I'd be OK with. She was one of my favorite characters in the OG series, but I'll just assume she's moved off somewhere glamorous and is living the highlife with Lucky, Gracie, and some new peepee money. Maybe they could get an email from Luannne confirming it's all working out, or at absolute worst a now-inexplicably-thirty-year-old Gracie suddenly shows up with five kids of her own, but the less that's said the better, I think.
MUCH rather that, then the weird AI voice thing they did for the season's final scene with John Redcorn.