Like most of the board games, I prefer chess with standard starting position.
In the highest level, the draw has high percentage of results. In order to avoid repeatition of the games (sometimes the whole game in case of short draw), chess960 was introduced.
I dont think chess960 will be popular in the beginners level, for that matter intermediate level. People from high level may show interest. But marked difference may arise only from highest level of play. (Maybe 2600+ FIDE ratings).
It might be interesting to intermediate players who consistently loose in the opening traps. otherwise I dont think chess960 will be popular.
It seems unlikely that Chess960 could replace standard chess if for no other reason that all the people who have titled in the standard game would probably hate to see all those opening lines lost. OK, not all, just some. But, if you could start at the beginning wouldn't it make more sense just to randomize the start and play chess? It might make learning chess harder though