So what was needed to list?
Literal answer, you just need to apply and provide the coin information
here if you want to list a coin. Well, the post above mine explains it further.
If you asked that because Binance are delisting several pairs, they have reasons. Maybe the said pairs have a little to no volume. Also, as stated "requested by most project teams", meaning it's not only Binance who decided to delist them.
for what i understood they will only delist the pair not the coin right?
Yes that's right.
it was said in the news that binance will be closed for 12 months?
Take a look at who said it and does he have an ulterior motive?