They do look like flower buds. I've got one that's been flowering non stop for about 2 years now. Doesn't seem to want to stop like the others. Not that the flowers are anything special, and there's no seed that I've seen.

So it's gonna have flowers... A month or so ago I thought it won't make it because lost all the leaves one by one. Pinched off the top to encourage lower buds and branching. I never even dreamed of flowers :D