Hooray! Found the start of the very first buds on the third of my discarded-leaf uknown AV babies. Number 1 was the gorgeous little blue I posted about a couple weeks ago, and this is the third one. Don't know what's wrong with #2, but maybe they just need to get bigger to be blooming sized. They're fat and healthy, but just not budding yet.
Anyway, I have 2 of this NoID and both are showing tiny buds. I will update when it blooms out.