I'll definitely pick something up, and I was looking for newer libraries as well. Though I'm an IT guy by trade, I don't do AI, ChatGPT, Co-Pilot, etc. that much. However, ChatGPT is pretty good at doing deep dive web searches. I asked it for its best guess on a complete list of libraries, and this is what is gave me.
EastWest (SoundsOnline) libraries by release date
2003
Quantum Leap Stormdrum (Kompakt) — 2003. Internet Archive
2004
Symphonic Orchestra (EWQLSO: Silver/Gold/Platinum) — 2004 (reviewed June ’04, initial releases spanned 2003–04). Sound On Sound
2005
Symphonic Choirs — Feb 28, 2005. KVR Audio
Symphonic Orchestra Pro XP expansions — 2005. KVR AudioSound On Sound
2006
Quantum Leap RA — 2006. Sound On Sound
2007
Quantum Leap Voices of Passion — Jun 18, 2007. KVR Audio
Quantum Leap Ministry of Rock (MOR 1) — announced Jan–Mar 2007; 2007 release. sonicstate.comSynthtopia
Fab Four — announced Jan 18, 2007; shipping Jun 1, 2007. The Music of John SawoskiKVR Audio
2008
Quantum Leap Stormdrum 2 — shipped Feb 2008. Sound On Sound
Quantum Leap Gypsy — Jun 21, 2008. MusicRadar
Quantum Leap Goliath — Jun 2008. Post MagazineMusicRadar
2009
Quantum Leap Silk — 2009. Sound On Sound
2010
Hollywood Strings — announced Jan 2010; shipping Feb 15, 2010. dontcrack.comSonic Scoop
The Dark Side — 2010. MuseWireSonic Scoop
2011–2013 (Hollywood core orchestra)
Hollywood Brass — late 2011 / reviewed 2012. MusicRadar
Hollywood Orchestral Woodwinds — 2013. musictech.comSound On Sound
Hollywood Orchestral Percussion — 2013 (released alongside Strings/Brass/Woodwinds cycle; widely cited in series coverage). Sound On Sound
2012
Ministry of Rock 2 — 2012. Sounds Online
2013
Quantum Leap Stormdrum 3 — Jul 15, 2013. Rekkerd.org
2014
Ghostwriter (Steven Wilson) — Jan 2014. KVR Audio
ProDrummer Vol. 1 & Vol. 2 — 2014. KVR Audio+1
2015–2016 (Hollywood Solo series)
Hollywood Solo Harp — Nov 2015 (ComposerCloud first). Sound On Sound
Hollywood Solo Cello — Dec 1, 2016. Sound On Sound
Hollywood Solo Violin — 2016. KVR Audio
2017
Hollywood Choirs — 2017. Sound On Sound
2018
Voices of the Empire — Apr 19, 2018. KVR Audio
Voices of Soul — Oct 24, 2018. KVR Audio
2019
Voices of Opera — Mar 26–27, 2019. KVR AudioMusicPlayers.com
Hollywood Pop Brass — Jan 24, 2019 (announced/released). Sounds Online
2020
Hollywood Backup Singers — Jan 14, 2020 (release); reviewed Apr 2020. KVR AudioSound On Sound
2021
Hollywood Orchestra Opus Edition — Apr 27, 2021. KVR Audio
2022
Forbidden Planet (hybrid synth VI) — Nov 4, 2022. KVR Audio
String Machine — Nov 4, 2022. KVR Audio
2023 (Hollywood Fantasy series)
Hollywood Fantasy Brass — Jun 19, 2023. KVR Audio
Hollywood Fantasy Winds — Jun 26, 2023. KVR Audio
Hollywood Fantasy Percussion — Jul 28, 2023. KVR Audio
Hollywood Fantasy Voices — Sep 6, 2023. KVR Audio
Hollywood Fantasy Orchestrator — Oct 27, 2023. KVR Audio
2024
Hollywood Strings 2 — Apr 25, 2024. Sound On SoundPraiseTracks
Iconic: Classic Synth Collection (Anthony Marinelli) — Oct 15, 2024. KVR Audio