So...after the WWDC announcement...any exciting new ideas?The timing on that would pretty lousy given that iOS 11 beta is likely to debut in June. Also, candidly, we're just not getting that much pressure on this; we've been promising a Big Flashcard Update since 2011 or so and at this point most people have either resigned themselves to the current system's limitations or switched to another flashcard app (in which case they're unlikely to consider switching back to Pleco anyway until 4.0 is out). So the amount we'd gain through an intermediate release isn't really enough to justify what would actually be quite a lot of added effort.
That means that when you read a text in the Pleco Document Reader or any other place where Pleco has access to context, tap on a word, tap on the '+' button, not just the word you tapped on, but also a certain (probably configurable) amount of text before and after the word will be saved with the flashcard, allowing you to remember more easily how the word was used in the context you added it from.
That's a great feature for language learning, because otherwise you'd have to do it all by hand, which you won't do because of the effort required. On a smartphone, tapping in the context would be just too time-consuming.