Mojang has already stated that they have no intention of maintaining Bukkit. Looking at the current status, the DMCA takedown and the fact that most valued staff-members/developers moved to Sponge I doubt it’ll stay afloat.
I agree, sure they may have a couple people there who could potentially keep it up but it was mostly the support of all the other community devs of the project that kept it afloat and you can’t just buyout a project and expect all the community devs to come with it hell most of them didn’t even know mojang owned bukkit.