With every patch notes I've read so far comes to recommendation to disable all launch parameters currently in use. Despite putting effort into finding at least one of them, I was not able to, so this is a desperate try to get a complete and comprehensive list of all currently working ones together in one spot.
Since I don't know any yet, I'd like everyone who is able to (yea, also looking at you, Neocore...) post what he knows and share his wisdom.* I will try to keep up and update this post accordingly. Thank you in advance for any contribution.
*Be aware that the common recommendation "Knowledge is power, hide it well." does not apply in this case. Noncompliance is punishable by imperial law and will have severe consequences. If you know any individuals who do have detailed information on the matter and refuse to share it with members of the Inquisiton they are Heretics and thus to be purged in His name.