Frankly, I think they need a new Rebel.
The T4i was well received, but that was 2 years ago. The T5i was largely considered a rebadged T4i and was NOT well received because of it.
To most, the T5i is a 2 year old design. Looking at what Nikon has to offer, at least on paper, their entry level cameras look more appealing. I believe they all (at least the current versions of each series) have wifi and (for what it's worth) auto focus in video, which the T3i does not (not sure about the T5).
Since these are the models that sell in the highest volume and they are a gateway product, they need to be kept fresh and competitive.
I think the T6i needs dual pixel and wifi, which will in my opinion, make it class leading. This doesn't seem like a stretch for the next Rebel, but we'll see. I don't think anybody expected the T5i was going to offer so little over the T4i.