I'm a little less optimistic about this: Tron has a lot of funds and is good at marketing, I think that they will use this to attract a lot of developers and users.
"Steem Classic" on the other hand grew more "organically", which is in general good, but in the last 18 months or so, it also lost active users organically.
In general, I think that the tumbleweed scenario is more likely to happen, but I'm happy if I'm wrong with this prediction.