Things are getting far too interesting (again) in the world of Avid-land. They have sold off all of their consumer lines: M-Audio to inMusic (owner of Akai, among others) and their consumer video line to - of all companies - Corel. Note that Avid is keeping the Fast Track line of interfaces.
So far the official word about Sibelius, is that it is staying with Avid. However, Avid is closing the main office of Sibelius. Avid is also - again - reducing the size of their employee base, this time by about 10%.
It is not at all clear what this might mean, in the end, for Sibelius. Nor would I wish to jump to any premature, and possibly wrong, conclusions. IMO, the situation needs to be watched, and hopefully many Sibelius users will let Avid know of their concerns.
While I happen to use Finale, notation programs are such a niche market that the potential loss of any one of them would hurt.