Conversation so far:
What is meant by final activities in reference to the band White Lion?
With White Lion on hold again Tramp continues with his solo career releasing the album Mike Tramp & The Rock 'N' Roll Circuz in 2009.
How did the band White Lion become officially over?
In August 2014 Tramp released the acoustic folk style rock album Museum. Following this release Tramp once again confirmed there would be no more White Lion.

Question: Following what release was that?
Self-contained rewrite: Following what release was the band White Lion officially over?