Ok, quick run down of the who the fuck everyone is!
Leo: ...ok, not going to bother with this; we all know him.
Angeal: Zack's mentor, best-friend and the original owner of the Buster Sword. Prominent character in Crisis Core whose all about DREAMS, HONOR and turning into a fused chimera monster thing because we need a stylish Disc 1 Final Boss. He'll probably be FF7's Knight, and is basically about as good an addition to FF7 as you'll get outside of maybe Genesis (Crisis Core's villain.) Certainly better idea than anyone from Dirge of Cerberus!
Alphinaud: Major NPC in FF14, to the point where he's basically the game's protagonist. Arcanist, so he uses a Book, and will probably be FF14's Summoner as a result. He's also secure enough in his sexuality to wear matching outfits with his identical twin sister...yes, I am 100% aware that identical twins technically have to be the same gender, but seriously, go look up an image of Alphinaud and Alisae, and try to figure out which of the two is a male. I did that with my sister when she started FF14 and she refused to decide.
Minfillia: NPC of FF14 who leads the Scions, is basically the epitome of faux-important. The game tries it's best to make it seem like she's meaningful by saying "LEADER OF THE SCIONS" but she actually doesn't do anything other than require you to constantly return to the scion base, and tell you to go somewhere else. She also has super powers in being able to see the past, getting kidnapped, and taking credit for things all her allies did. They even make it a running gag that she's a complete non-combatant, begging the question why they didn't choose like...anyone else!
Dorgan: Bartz's dad, appears in various flashbacks and was the one guy who said "So sealing Ex-death on another planet is kind of a dick move don't you think? I'm outnumbered aren't I? Ok, the only way I'm NOT going to feel like a prick is if I stay behind on this planet so SOMEONE is around to oppose Ex-death should he revive." Then he bangs a woman and produces an idiot son.
The one thing Dorgan DOES do for RK is let you make a full team of "Dads of other PCs!" We had Laguna, Shadow, Jecht, and Braska, so Dorgan's our fifth!
On a different note, I think I've decided that the amount of RK I'll be playing is enough to empty my stamina once per day. That way I "keep up" if I ever want to get serious again, but I can also "play it and forget it" each day as a result.