I think a lot of people that were quick to reply didn't get what OP is trying to ask. He is asking suspension from conversion. What I observed about Binance is that when they add something there must be a reason for it and when they suspended something, there is a reason for that as well. If Binance add coin for conversion, it's because there is demand for such coin and if they later remove it, then it means they don't see demand and are not making money from it again. So OP, I hope I answered your question.
Binance don't suspend coins but when there is upgrade, they suspend deposit and perhaps withdrawals. They don't stop the trading in spot but they may suspend the future trading of that coin but they don't suspend any coin. If there is a reason for any suspicious move, they can only halt deposit.