Jeff Buttle, who is merely 2 years younger than Sandhu and retired only one year after him, just skated a Free Skate with a clean Triple Axel at last month's Japan Open. Without that Triple Axel, Team North America would have lost to Team Europe for the Gold medal. That shows you the dedication of a supposedly retired skater. Buttle also has not been training full time and has been dedicating his time on other work, yet he still has all his triples. Is it so inconceivable that Sandhu could still have all six Triples if, unlike Buttle, he has been training full time to regain his abilities despite the mere 2 years of age difference?
There is a lot of things you can do with quadless programs with just 6 types of Triples. It will also allow you to focus more on the non-jump elements and the PCS. Since Sandhu didn't say his goal is to become World Champion, I think it's conceivable that an athletic and well presented Sandhu will be a formidable competitior to anyone, including Patrick Chan. After all, it's not as if Sandhu has been living on Mars for the last two years. He knows who is top gun in Canada now and he happens to be the reigning World Champion and the Guiness World record holder for highest scores ever in SP, LP and Total Score. Plushenko came out of retirement in part because Russia had no prospect, not so in Canada. Sandhu knows Canada doesn't need him the way Russia desperately needed Plushenko but yet he chose to make this come back an obvious personal fulfillment and I can only wish him well, admire his courage & love for this sport. This is not another Fumie Suguri.