On the contrary, I’ve observed L&L to add features that many people have politely asked for. But it’s not a question of “user votes.” In descending order of probability:
If it’s easy to implement AND fits the designer’s (Keith’s) vision of the app, it may well arrive in the next minor update. (for example,1.0.5->1.0.6)
If it’s moderately difficult to implement, but fits the designer’s vision of the app, it might arrive in a significant minor update. (For example, 1.0.5->1.1.0)
If it’s extremely difficult to implement, but fits the designer’s vision of the app very well, it might arrive in a major paid upgrade. (For example, 1.0.5->2.0.0) Such upgrades are extremely rare; there have only been two for the Mac so far in more than ten years. The first paid upgrade for Windows is now in beta. iOS Scrivener is very young compared to the other two.
If it doesn’t fit the designer’s vision for the app, but many users present polite, cogent arguments in its favour AND it’s easy to implement, it might or might not arrive in a minor update. But if not easy to implement, Hell will freeze over.
“No current plans” probably means that it’s either moderately to extremely difficult to implement (I’d bet on “extremely”) and that the designer hasn’t yet ventured or formed an opinion on desirability. Please note that there’s only Keith to implement changes on both Mac and iOS, and he’s still fine-tuning Mac 3.0.x, so likely this answer means it's not even on his extensive "like to do it someday" list.
Doesn't mean it won't get there, but I won't hold my breath.
FWIW, I'd like to see snapshots on iOS too, but it's not a big deal for me.