I read from poster TV.Com that it was announced Jorja would definitely be appearing in the finale-- this was, of course, before the WGA strike. Now, we aren't so sure.

HOWEVER-- folks over at the TV.Com forums speculate that the break from working will allow Jorja to get the "seven year itch" (so to speak) out of her system and by the time the strike is over and episodes start getting written, she may be back for more sooner (in the show/season) then expected.

This is pure speculation, although apparently the spoiler regarding Jorja in the finale came from reliable sources (the thread was long, was too lazy to go back and find where it was said).