After past special crates, I have my suspicions that either tonight or tomorrow, VALVe will release a Major Update of sorts that will include the Robocrate key. Following past special crate/key combinations...
Australian Christmas 2012 (AKA Mecha Engine) - Naughty/Nice Crates released on the 13th December. Keys released on the 20th December.
Australian Christmas 2011 - Naughty/Nice Crates released on the 9th December. Keys released on the 15th December.
Australian Christmas 2010 - Festive Winter Crates released on the 10th December. Keys released on the 17th December.
As for other special crate/key items, either the Keys were released on the same day or 3 days later at the most...
Fall Crate - Released on the 4th September 2012. Keys released on the 6th September.
Refreshing Summer Cooler - Released on the 28th June 2011. Keys released on the 1st July.
Scorched Crate - Released in the Pyromania Update, on the 27th June 2012. Keys were released on the same day.
Eerie Crate - Released in the Spectral Halloween Update (Scream Fortress IV) on the 26th October 2012. Keys were released on the same day.
Since we have had the Robocrates for longer than 3 days, one can only assume the wait between the first appearance and getting the keys will be similar length to Australian Christmas Keys; a week, which it has been now...
The reason why I suggest either tonight or tomorrow is partly because of the AC algorithm delay, and also partly because VALVe have been known to release updates on a Friday, Wednesday or even a Tuesday, as opposed to a Thursday.
Mecha Engine - Thursday, 20th December 2012
Spectral Halloween Special - Friday, 26th October 2012
Mann vs Machine - Wednesday, 15th August 2012
Triad - Thursday, 2nd August 2012
Pyromania - Wednesday, 27th June 2012
Australian Christmas 2011 - Thursday, 15th December 2011
Very Scary Halloween - Thursday, 27th October 2011
Manniversary - Thursday, 13th October 2011
Manno-Technology - Thursday, 18th August 2011
Dr. Grordbort's Victory Pack - Wednesday, 20th July 2011
Summer Camp Sale - Friday, 1st July 2011
?ber - Thursday, 23rd June 2011
Replay - Thursday, 5th May 2011
Hatless - Thursday, 14th April 2011
Third Community Contribution - Thursday, 7th April 2011
Japan Charity - Thursday, 23rd March 2011
Shogun - Friday, 10th March 2011
Community Map Pack - Thursday, 24th February 2011
Australian Christmas - Friday, 17th December 2010
Scream Fortress - Wednesday, 27th October 2010
Mann-conomy - Thursday, 30th September 2010
Engineer - Thursday, 8th July 2010
Mac - Thursday, 10th June 2010
Second Community Contribution - Thursday, 20th May 2010
119th - Thursday, 29th April 2010
First Community Contribution - Thursday, 18th March 2010
WAR! - Thursday, 17th December 2009
Haunted Hallowe'en Special - Thursday, 29th October 2009
Classless - Thursday, 13th August 2009
Sniper vs Spy - Thursday, 21st May 2009
Scout - Tuesday, 24th February 2009
Heavy - Tuesday, 19th August 2008
Pyro - Thursday, 19th June 2008
Gold Rush - Tuesday, 29th April 2008
All release dates obtained from the wiki and exact days found via Windows Calendar.
Since Tuesday and Wednesday have come and gone, one can only imagine that the new keys will be released in a major update either tonight, or tomorrow.
TL;DR - Robocrate Keys either tonight or tomorrow in a major update so stop making threads asking. Also, the first major update was on a Tuesday, so it's possible they won't be released on Thursday like everyone says, but maybe Friday.
