Minecraft is and always will be my favorite game, no matter what anyone says about it, no matter how many people stop playing it, no matter anything, I will always play and enjoy it! Besides, lots of famous youtubers like CaptainSparklez, SkyDoesMinecraft, and EthosLab will always be recognized for their minecraft stuff!
Minecraft is actually not that old either, it just passed it's third anniversary and it's already sold more then 10 million pocket editions... and that's just the pocket edition, never-mind all the other versions.
Plus with all these websites (including this one), modifications, plugins, and other stuff, and with more and more people buying the game, the community just keeps getting bigger!
In my opinion, Minecraft is not dying, it's only just past the beginning part!