These growths are new pseudobulbs and may flower. I recently read that whether the bulb flowers, and how many flowers are determined when the shoot begins out of the rhizome from the conditions of culture such as light and nutrition...again, just reading, not growing long enough to really know. But I agree I would turn up the light and hope for a flower. I have grown lots of non-flowering pseudobulbs unfortunately
![Sad](https://www.orchidboard.com/community/images/smilies/icon_sad.gif)
If you have an ID on the plants I would look them up for the details on their culture.