XYZ Like the First Letter of Chinese Name in Pinyin Capitalized

According to the official announcement regarding the currency exchange, the so-called name change means that the project party will create a new chain and then conduct a 1:1 token exchange at that time. As for the exchanges, trading will be suspended for the exchange to take place. So, will the original EOS still exist? Or will both coexist for a period of time before EOS is gradually delisted? Is the project party abandoning the original chain and establishing their own separate path?