From what I hear from the inside , the Connie fiasco ( to finish it to make it airworthy for EASA would have cost more than what was spent already ) has shaken the tree . Even finished it would have been extremely expensive to fly it. (in 2017 Breitling also ended their sponsorship to the SCFA Connie which remained grounded after that , but hopes to get it back in the air this year ) It is not that much the JUAir accident ( which also shook the tree) but rather the costs and the difficulties in maintaining D-AQUI , causing long periods of being unavailable in 2018.
One has also to remember the accident of their Safir in 2014 . So money yes, but not only. Very sad for all those involved who love historical aircraft.
The DLBS voluntary work now will likely be focused on restoring the FW200 Condor, a magnificent aircraft, but most certainly not for flying anymore.,.