I enjoyed Kala's summary. There are blends of themes across the usual lines, and the Midularite/Shakorite tension has been diminished now that Shakor is in power and has (apparently) failed to deliver any noticeable change, but you get that in politics. I do sometimes miss the subtle tensions over tribal and Republican politics. Mata has worded some of her internal statements very carefully.
Some more common themes in Minmatar roleplay:
The Sword and the Shield: focus on freeing those still in slavery vs focus on making a good place and society for those living in freedom.
The Pure and the Wise: using only Matari gear vs using whatever does the job best/is to hand (AKA Khumaak philosophy) (this dichotomy gets right up some people's noses, by the way, for suggesting that the other way is impure or unwise).
The Returned and the Freeborn: an oversimplification.
Clanfolk and Unattached
Marked and Unmarked
Republic Fleet vs RSS: yep, that used to be a meme, and some of us have backgrounds coloured by it.
I'd throw in a bunch of stuff about neoTrads, Galmatar, Amarrish-speaking God-worshippers, and the general weirdness you get when a bunch of often quite damaged people try to set up a society and state from scratch.
Some cliches (apply only with thought and care):
Bad mark
Extreme anger or brokenness, without redeeming features to make others care
Inclusive neopagan shamans
Klingon Brutor
Vulcan Sebiestor
"Pregnant by aliens again, huh?", which is shorthand for "You like your RP with an extra side of :drama:, don't you?"