The devil makes work for idle hands...
With little news on the RDR2 frontier in several months, the RedDeadNet community on GTAForums has created their own by trawling the Internet for hidden references to the game. None of this list confirms or denies any details, but we're having a lot of fun speculating in the General Chat thread just to pass the time and we'll use this as an archive to compare to once the game is officially out, Mythbusters style. The bounty belongs to those who find the treasure, so if you take from here, quote your sources. thanks.
Plausible finds so far...
29th May 2016 Picture of a supposed "Red Dead Redemption" game found on an ex-artist's portfolio. Featuring unknown location and a more recent version of the RAGE engine - found by Spider-Vice and R4gN0r0K (image that was deleted - link to initial post)
May through June 2016 - First evidence of a new game being developed by Rockstar since at least 2012-2014, as seen on employee's LinkedIn profiles - found by Spider-Vice, Jabalous and Joe_does_sit (Posts: #1, #2, #3, #4, #5, #6, #7, #8, #9)
24th October 2016 Rob Wiethoff supposedly tweeted a fan acknowledging he worked on RDR2 (unable to verify as account deleted, may be fake)
21st February 2017 IMDB various stunt artist credits - found by Jabalous (link to post) (image)
21st February 2017 IMDB Patrick Sinclair technical credits - found by Kirsty (link to post) (image)
2nd March 2017 IMDB Ethan Corver character credit - found by Jabalous and @RedDeadNet (link to post) (image)
7th March 2017 Matt Bradford resumé stating "Dutch MoCap" - found by Jabalous (link to post) (image)
7th March 2017 Stuart Williams resumé stating "voiceover" - found by Kirsty (link to post)
8th March 2017 Roger Grunwald resumé stating "German psychiatrist" and "Menchen" - found by Jabalous and Kirsty (link to post)
8th March 2017 Various voiceover actors all found to be following each other on Twitter: Roger Clark, Benjamin Byron Davis, Steve J Palmer, Gabriel Sloyer Ceron and Peter Blomquist - found by Neudd (link to post)
9th March 2017 Roger Clark's voiceover work felt to be very similar to voiceover from RDR2 trailer - found by KevFB (link to post) (video)
10th March 2017 IMDB Bank Teller Cowboys stunt credits - found by Jabalous (link to post) (image)
10th March 2017 Andre Da Silva resumé stating "motion capture" - found by Jabalous (link to post) (image)
10th March 2017 Possible project titles speculated about via SAG-AFTRA website - found by Jabalous and Spider-Vice (link to post)
10th March 2017 Roger Clark noticed to have "liked" a RDR2 speculation video by LegacyKillaHD on YouTube - found by Neudd (link to post) (image)
11th March 2017 Cali Moore found to be friends on Facebook with Rob Wiethoff, Roger Clark, Benjamin Byron Davis, Steve J Palmer and Gabriel Sloyer Ceron - found by Mrkryptonite97 (link to post)
13th March 2017 Noshir Dalal found to be friends on Facebook with Rob Wiethoff, Roger Clark, Benjamin Byron Davis, Steve J Palmer, Gabriel Sloyer Ceron, Peter Blomquist and Cali Moore - found by Sandman7744] (link to post)
13th March 2017 Noshir Dalal resumé noticed to be listing a high profile game covered by NDA for a major character - found by Neudd (link to post) (image)
18th March 2017 Ethan Korver confirms via Twitter he did "two words" of voicework for RDR2 but no motion capture - found by Kirsty (image)
20th March 2017 Ethan Korver answers an email sent by TheOriginalGunslinger about RDR2, saying that he couldn't reveal more details before E3, possibly confirming a R* presence at E3 if he is to be trusted. (link to image | original post) - found by TheOriginalGunslinger
20th March 2017 Ethan Korver answers a fan on Twitter about the two words he has said for RDR2, supposedly "Howdy" and "Wait", however, this could be a troll attempt by the actor. The same fan found that Ethan Korver mentioned RDR2 and "other projects" on his Facebook page. Worth speculating... (post | Facebook status) - Thanks to @marcelo0g111 on Twitter for sending this in to us!
Named actors from above confirmed to be connected to the Rockstar Universe:
Rob Wiethoff was voice of John Marston in RDR1
Benjamin Byron Davis was voice of Dutch in RDR1
Steve J Palmer was voice of Bill Williamson in RDR1
Gabriel Sloyer Ceron played Oscar Guzman in GTAV
Peter Blomquist played Dr Fontaine in LA Noire