Well, we don't talk much about "what could have been" here on Smogon. Too much wishlisting, too little substance. The obvious answer to your question is "a good new ability or a Mega", which I believe is what has always happened to crapmons that suddenly turned good (apart from a few select cases of poor movepools that were fixed). But anything beyond that generic description would be speculation or wishlisting, which is in conflict with the forum rules. Also, OI is not the place for competitive talk. We have literally the entire rest of the forum for that.