I actually never finished the Thrawn Trilogy. I read the frst two when they originally came out, and I was so frustrated with book 2 just stopping at a random point, not having any resolution of any kind but just breaking off and leaving me to wait a year for the conclusion, that I just walked away.
I remember having a similar response to The Vampire Lestat
ending on a cliffhanger, although I eventually read Queen of the Damned
anyway . . ..