This question is a follow-up to: Why didn't the number zero (0) have a Roman numeral of its own?
Although Romans used the word nulla (nothing) to convey the concept of zero, the Roman numerals lack a zero digit in their system.
If they were aware in the concept of zero, or at least some concept of "nothingness", then they would have been likely to have a zero digit. However, they didn't.
The reason is because the Roman numeral system is a non-positional system. Non-positional systems can work normally even without a zero digit. Does this mean zero will never get an official Roman numeral symbol?