Perhaps this non update signals that Canon intends to phase out the T5i rebel series and eventually replace it with the SL1 series.
This non-update serves to raise (back) the price of the Rebel series.
The T4i was announced in June last year for $849.
Just a few months later, though, Canon had slash the price to $599 (30%).
With this non-update, the price is now $899.
This is $50 higher than the T4i intro price and $100 higher than T3i intro price.
So, in effect, Canon is raising the price - while also repositioning the Rebel a little higher.
We'll see now what they will do with the 70D.
There's no way that it will be spec'd as Nikon's D7100.
So, interesting to see how the 70D will be spec'd and positioned.