A few things:

Those in Minas Tirith when it fell: Gandalf led them into underground tunnels and rooms beneath the city.

The archives were saved, though with some losses. I don't know how. We can ask the Archivist, he'd know!

Any other questions, just drop a line here, along with what you're going to do with each character, that you can think of. *nodnod*

For me:

Miriel will pop up half drowned in the river, to be rescued by Ilsa.
Faramir has met Eowyn and has a thing for her, but they need to interact so we see what happens. (assuming Kate isn't permanately awol, otherwise tempted to have her die from ze witchking >.>) He's still recovering from..everything XD
Eomund will dig himself out of his own grave. In front of Eothain and Eomer. ZOMBIEEEEEEEE!
Gandalf is currently in Minas Tirith, being advisory
Celeborn I need to figure out, in relation to GAladriel
Minulziran is currently in Dol Amroth or Pelargir, I haven't decided.
Khamul will return. HE won't have to sword. Jessi might come back so I wanna check with her and stuff *nodnod*
Rodwen and her sister are in Tirith
Feorcwen is demoted to NPC status and is in Edoras. She missed Wulfy!
Ivri is being a pain in Imrahil's ass. I don't know how. Or why.