Considering the GE bulbs work, there are high hopes these will work.
We'll get some, no worries, but I doubt they'll work seamlessly without us adding support for them.
That said, they seem to be working with the same sensor manufacturer that we've worked with so far, so it's 50/50 chance.
As to proprietary layers, even SmartThings tried this, so we have to do a bit of extra work to make their sensors work with the Almond+.
Now they're using CentraLite, so their new sensors are already supported once we release the next firmware.
We try to work with everyone that makes sensors that are 1. available in retail 2. follows the standards and 3. we can get hold of.