I don't think so.
There are only 10 or 12 teams in Europe that have economic potential enough to pay these salaries. Barcelona, Tau, Madrid, PAO, Khimki, CSKA, Maccabi, Olympiakos are the ones that are able to pay these salaries.
In Italy almost every teams are from small towns. In France and Germany there aren't much good teams. In Spain many teams are having economic problems and are disappearing due to that problems.
In Greece, Russia and Israel there are three or four good teams.
Those teams can't pay 45M€ in salaries.
A expansion of the league... An European Division... It might happen in ten? twenty years? I'm not sure. NBA teams have an ENORMUS economic potential.
(My vocab is a bit poor, excuse me).