As per announcement by Binance, you can read in https://www.binance.com/en/support/announcement/8bdcb060635b491d912247fb00603d4d
Thereafter, users will be able to use the convert function to swap their NPXS for PUNDIX tokens.
They maybe are giving enough time for the old coins to be traded, after they will just have to manually convert their tokens to the new contract.
Also, Pundix is going mainet so this old token needs to be converted anytime soon as it could go more process.