Couple of sites talk about Canon and their press events on Tuesday April 23, 2013.
While there are no specifics announced so far, we guess that it will have DIGIC 6 processor with 18MP CMOS sensor same as Canon Rebel T5i or Canon EOS Rebel SL1.
New 70D should replace 2.5 years old Canon EOS 60D.
Sources:
Stay in touch, we will update news on April 23.