Novaexchange is no longer closing down.
They will be listing coins based on requests and will announce this in due course.
SWEEP is already available on NovaExchange so now when they are staying in the game we don't have to do anything anymore.
The have announced the news one week ago under the news section.
https://novaexchange.com/news/Strange part is that when they said they are closing down they sent few newsletters about exact dates, it's a little strange to make decision of 180 degrees and not sent customers email about that. I am not sure if this is actually their last decision.