Over the last 40 years, the IOC has been "tweaking" the rules of Judo to make it more spectator friendly by specifically limiting the amount of groundfighting it contains. I don't think that they will ever add it back into the ruleset. Judo has wide participation, but other sports like Greco Roman Wrestling are being slowly eliminated from the Olympics, which is a shame.
To answer your question, though, BJJ will not be an Olympic Sport, at least not any time soon. It doesn't meet the criteria. First of all, there is no international sanctioning body for BJJ. Second, there would need to be a significant number of countries with National sanctioning bodies for the sport. Third, there would need to be a specific number of athletes who compete at the elite level in the sport. BJJ is great, and I love it. But the numbers and interest just aren't there.
Think about Olympic trials. Do enough countries have enough black belts to actually hold an Olympic trial, much less field a competitive team? I don't think so.
Add to this that the interest in BJJ and Submission Wrestling is what is referred to as vertical, meaning that the fans and spectators of the sport are made up almost entirely of people who are in some way associated with the sport.
If the IBJJF continues to spread the good word about BJJ, and continues to organize events throughout the world, promoting participation and training in enough countries, AND countries begin putting together national sanctioning bodies governing the sport of BJJ and/or submission wrestling, it may have a chance provided some country introduces it as an exhibition sport (the way the USA did with beach volleyball). But I just don't think it's there yet. Maybe in another 20 years. I'm not even sure if the USA has a national sanctioning body. If there is one, I don't belong to it.
And this is all independent of the conversation about whether BJJ would benefit in any way from inclusion in the Olympics. We've all seen the conversations in the TKD section lamenting the damage to the "art" that Olympic participation has had.