I know nothing but saw:
this http://muse.help/index.php?topic=7794.0
points to https://steemit.com/muse/@cob/muse-project-status-update-action-soon-required

To those that participated in the pre-sale of NOTEs and have never claimed anything, you can wait and import your Bitcoin private keys directly into the upcoming Muse (the new Blockchain’s) interface. Once again, just make sure you don’t have any MUSE sitting on exchanges.

Certainly hope that is the case as playing the long game, I don't want to be jumping every hoop.