Skyline_UKI also thought that the CW acquisition was intended to help BandLab users make better quality sharing/cooperation tracks and that BandLab itself would be monetised at some point with on-screen ads or similar.
That's been my assumption as well. And I don't think it needs to do much more than that to pay its way. Maybe getting the Cakewalk plug-ins re-branded and up for sale, perhaps selling space on their cloud servers as Cakewalk becomes more and more integrated if people want to use that as backup, selling loop packs. Those would all be nice bonuses, but really, what you say about it just being a complementary thing to the online platform, like Google Docs has its iOS and Android apps. Of course, BandLab already has apps that run on those platforms, too, and they are free. Cakewalk is the (monstrously powerful) Windows app.
Once the BandLab site starts getting eyeballs, who knows what it's capable of as far as revenue. Facebook started out ad-free and they wound up doing pretty well. Powerful enough to influence a presidential election? YIKES!
There are other modes to be in than "quickest way to increase profits," but when I (veteran of Silicon Valley, both hardware and software) have been at companies that got brand new CEO's, they did tend to have that outlook. Especially the companies that were publicly-traded. :-)