We’re told Canon is holding press events on Tuesday, April 23, 2013. We have not seen any official invites, but this does come from a known source. I will post any invites I receive here to confirm.
No mention of what products to expect, though I would think an announcement for the EOS 70D must be close.
Pay close attention to the new sensor in the Canon EOS SL1 as far as performance goes. We’re told this sensor will appear in the EOS 70D, but not the EOS 7D Mark II.