- No alternative is going to show up which can host anywhere near the amount of traffic that reddit receives/received. That takes a lot more money than any new contender can drum up.
- reddit isn't going to decide it no longer wants to make a profit
- A lot of users are going to wander back over to post-blackout replacement subreddits
- A lot of communities are just going to disappear. It breaks my heart as a member of a sport-based subreddit, there's just no good substitute. If I were in charge of a sports league, I might be working on some sort of equivalent because for me personally a lot of the joy of watching a sport is sharing reactions with others. I can see my interest just fizzling out.