Anki is already very powerful with robust features for spaced recall and if we can set review counter in the editor for fields to become visible only after a specified number of reviews or once a card reaches a certain maturity level. It will be more contextual for learning new info on the same topics rather than doing it in separate cards.
Potential Benefits:
Enables progressive/layered learning
Reduces card duplication for related content
Keeps reviews simple early, richer later
Improves contextual learning over time
Increases information density per card without adding review load
This is a bad idea. If you change what is being asked/answered on a card, it can make the existing review history no longer relevant. That’s why you want to keep them as separate cards – to maintain clarity on their scheduling.
This is not for learning totally new stuff which can overhaul the review history but the conditional fields will reveal contextually relevant info (if shown during the first review can be overwhelming) to develop or strengthen the existing connections.
For example, someone leaning new words with example sentences and after few reviews the conditional field will show the sentence structure or grammatical explanation etc.
I don’t think you can keep a feature like this from being used for harmful-to-scheduling purposes. It seems like your need can be satisfied with Hint Fields/buttons. Learners can simply not click on them if they want to avoid being overwhelmed.