I guess this is a tough one. I am newbie here and not qualified to give any advice but I do feel your disappointment. It's a shame that it take the Canadian government so long to process the applications, then decided to terminate the program.
The new program in Quebec is not any faster. While the similar program EB-5 in the US takes about 2 years, the Quebec Investor program seems to take 7-8 years! Lot of things would happen within that 7 years duration.