Good questions sandik

. I'll take a whack.
The 1st person that comes to my mind for the nurse is Chalnessa Eames, but she was cast as the nurse last time. So who will replace Jodi? (One can't replace Jodi in this role......she will always be the best nurse ever I think.) I'd like to see Jordan Pacitti do it.....but of course that doesn't work either. Laura Gilbreath would be great IMHO, but is she too tall? I like your suggestion of Mara. I also think Foster would be terrific as the nurse if she doesn't do Juliette. If I had to decide today, I'd go with your excellent suggestion of Kari Brunson.
I like your idea of Kaori for Lady Capulet. Her performance in Tharp's "Afternoon Ball" as a woman of power was unforgetable. I think her character comes more to the surface the more wild the character she plays is. Arianna already does it of course. If I were Peter Boal, I'd attempt to talk Louise Nadeau into a "guest" performance for Lady Capulet. It fits her like a glove. Failing that, I'd go with Carrie Imler, or your suggestion of Miranda Weese (how much longer will Miranda be dancing tho?). This would be a good one for Kari Brunson too.
Tybalt? To be honest I was never a big fan of Casey Herd (a fan to be sure, but not a big fan); but he was fantasic in this role. After seeing Casey, I would want someone equally menacing. Jeffrey Stanton might pull that off. Olivier Wevers could, but if anyone dares to suggest that anyone but Olivier play the Friar, I will picket outside the opera house! How about Barry Kerollis? And wouldn't it be interesting to see either William Lin-Yee or Sokvannara Sar as Tybalt?
And I'd like to see apprentice Sean Rollofson in one of the macho roles.