Before before we start down that undoubtedly long process of "reform," voters should be given a chance  to answer this question in a referendum: "Do you want to "reform the Senate? Or abolish the Senate?" Afterward, the government is obliged to do what voters want.
Let's not start the ballgame of detailed and partisan negotiations regarding Senate reform before then. Otherwise, we are facing years of "talks" involving provinces, territories and First Nations - with no chance of quick and true success. And it would unquestionably include political deadlock. Some of the talks would occur during flashy formal conferences and some of it in the backrooms. Also, lots about it during Question Period in the House of Commons. From coast to coast it would dominate our politics - including election(s). The people most interested in such a change are politicians, the media and constitutional academics. Let the people decide before we put the "ball in their hands."