There is a rumor floating around today that said Canon is evaluating another company's full frame sensor against their own and perhaps even consider getting out of the sensor business. My answer to the first part of the speculation is, why would that constitute photography news? Tell me something I don't know. The answer to the second part is, absolute rubbish.
Almost all big manufacturing companies, like the automotive industry for instance, evaluate their competitors' products, to see if they are ahead or behind, and perhaps seek areas of co-operation and possible joint ventures to cut down on costs.
The full frame sensor company in question here is, of course, Sony. They are the only other company with the engineering resources and manufacturing expertise to interest Canon. It will not be a earth-shattering event for Canon to use another company's sensor on their lower end cameras like the Rebel or Powershot models, like they did with the Powershot G7X. And yes, Canon will be in the sensor manufacturing business for a long time to come. Just look at what they have announced recently at the Canon Expo 2015 show, among them, a 250MP sensor. The upcoming EOS-1D X Mark II and EOS-5D Mark IV cameras will have new Canon sensors on them.