It's not dead (at least before 31 Dec 2020). Many things are still do-able once you enable flash on your browser.
For the HTML5 conversion/mobile app, tbh I am not so confident about the transition. (any more news from the Premium Users invited for the beta testing?)
Even if it happens, I bet it will be a crappy process like how the lag persisted for years when they relocated the servers from Viacom to Jumpstart back then in 2014.
But still I hope Neopets can survive for many many more decades, for it has been, is, and will always be playing an important part in my life.