No, except in extraordinary circumstances users can get it if they had it.
What used to happen is someone would sneak a GameBoy emulator into and app and people would RUSH to download it, because it would be pulled in hours. Maybe they didn't want a GameBoy emulator but if they ever did they'd be able to download it later.
There are a few cases where Apple has pulled an app TOTALLY so even existing users can't get it, but I don't think it's ever been done more than once or twice.