There is a very high chance that ‘undetermined’ translates to dies in ME3.
Shepard: Dies (ME4)
Liara: Dies (ME4)
Garrus: Survives but dead by the time ME4 rolls around
Pressly: Lives (LOL, figure that out)
Telanya: Dies (ME4)
General von Grath: undetermined
Navigator Friggs: Dies (ME3)
Senior Chief Vega: undetermined
Jack: Survives but dead by the time ME4 rolls around
Morinth: Lives past ME4
Aeythta: Not telling.
Saren: Double LOL
Vigil: Dies (Fear Unrelenting)
Mordin: I’m probably too much of a weakass to kiil him.
Grunt: Lives past ME4
Zaeed: Dies (ME2)
Purge the alien. Kill the heretic. Suffer not the witch to live.