There have been some interesting observations on HN and elsewhere, that Canonical for a long time didn't know what it is doing, starting and cancelling projects, but in last years it is lowering interest in desktop and is more focused on providing cloud server software and foisting its new products and methodologies on its users(snap). Some people see this as indication that Canonical is positioning itself to be bought for the best price. It makes sense, as Canonical has a large Linux user base but can't make money there. Microsoft is making inroads in Linux world is the most likely buyer.