Someone who had an early draft of the script sent me the relevent pages in an e-mail. (Now long since departed along with everything else on the hard drive of an old computer. )
I posted the relevant sections on another thread a while back. Here they are again:
The cast list says "Lyta Alexander - TBA"
On page 25 when Matheson enters the cell it says:
"She slowly raises her head: it's LYTA ALEXANDER, looking dishevelled, dirty..."
On page 31,after the fighting starts we have:
"There's another blast, this time of sheer force, not explosives, blowing out the door to the cell, and in the smoke and ust we SEE Lyta emerge, eyes glowing brightly, a corona around her. She looks off...and in the melee we can just SEE a Minbari Ranger, but not seeing his face, fighting furiously, hand to hand, making his way to her.
LYTA
(triumphant)
Lennierrrrrrrrrr!
That's all we see as Matheson is carried away by the crowd.
71 EXT. SPACEPORT
As a shuttle rises into the air
72 CLOSER - SHUTTLE WINDOW
We can just see Matheson in the front window, co-piloting. He looks down as he senses:
LYTA
Live free, John! Find your dreams!
73 HIS POV - DOWNSHOT OF PSI CORPS CENTER
As the center is decimated in a flash of white that makes a thermonuclear detonation look like a firecracker."