[Refplace]

On Indefinite Hold/Rumor/Unknown/Vaporware

• Unknown GURPS 4th edition conversion (by Jason "PK" Levine): probably unknown item in prepress as of January GURPS News; edited draft submitted as of March 25th, 2011; Unverified speculation this is a conversion of All in a Night's Work. (Total hints: 3 as of 12/03/2013)
• GURPS IST (by Bob Schroeck): is tentative, but looks like its in the pipeline. (Total hints: 1 as of 12/22/2015)
• GURPS Armourer's Handbook (by unknown): while the title is known it's still 'vaporware'; might see a release near Vehicle Design; working on one of the books in the Indefinite Hold section.. (Total hints: 3 as of 01/25/2019)
• GURPS Bestiary (by unknown): March 19th, 2010: "the wheel turned another few degrees on GURPS Bestiary this week. It isn't just parked"; made more progress on 4/30/10; coming quite soon. (Total hints: 3 as of 02/19/2016)
• Unnamed Project (by unknown): A book about what to do in your vehicle (vs. vehicle design). Tentative titles: GURPS Vehicle Action or GURPS Vehicles in Action as seen here; working on one of the books in the Indefinite Hold section.. (Total hints: 2 as of 01/25/2019)

That's 28 possible future releases that have been discussed thus far (this does not include entries under the on indefinite hold/rumor/vaporware heading).