The Wall Street Journal is reporting that a equity holders and lenders behind Premier Exhibitions have made a $17.5 million offer to acquire the company. The entities involved are PacBridge Capital Partners Ltd., as well as funds affiliated with Apollo Global Management LLC and Alta Fundamental Advisers LLC and other equity holders as well. The papers were filed with the court on 15 June 2018. According to the Wall Street Journal:

The prospective buyers will hold the sale process open to other qualified bidders, with Aug. 8 as the proposed bid deadline. If other interested bidders come forward, an auction would be held on Aug. 13.

This is a very interesting turn of events. Up till now all attempts to sell the artifacts have failed to materialize (including the more recent famous one by James Cameron). Whether this will bear fruit or wither on the vine remains to be seen. You can view the document here.
Source:Titanic Artifacts May Soon Join Apollo, Alta Portfolios (Wall Street Journal, 20 June 2018)