MTH isn't doing new tooling, so we won't see it from that company. Lionel might do it as a brass hybrid which is essentially the same way Weaver offered it when they were still in business.
3rd Rail did CP FP7s, but I'm not sure when a rerun of that model will happen. There is an opportunity to produce the ES44 in the new CPKC paint scheme. It has created a bit of controversy on some sites, but I personally like the paint scheme.
One thing I have not been able to figure out is what is the consist of this train? All the focus has been on the locomotives.