Thanks. The next iteration of Canon’s popular Rebel series may be named EOS 770D and EOS 780D in Europe.
The current Rebel T6s and Rebel T6i are named EOS 760D and EOS 750D in Europe, respectively. The next Rebels, likely to be Rebel T7i and Rebel T7s in the US, should therefore get the monikers EOS 770D and EOS 780D in Europe.
Besides thinking it makes sense, I have no other hints about the reliability of the rumor. We expect the new Rebels to be announced soon, most likely in the next weeks.