They're not done yet. Although they've auctioned off their base and most of their assets, they have reported to be moving into a new base in Dinnington.
http://www.foxsports.com/motor/story/report-manor-marussia-f1-2015-entry-fee-021715
http://www.foxsports.com/motor/story/report-manor-marussia-f1-2015-entry-fee-021715