I'd love to see some smaller lights/lamps that would fit inside drawers or inside/outside other furniture for moodlighting or just plain illumination at a smaller scale than 'regular smart bulbs'. I would prefer z-wave support out of the box, but that's just me and my wishful thinking.
Maybe there's already plenty of options, I've been out of the loop for a bit.. But it would be nice if IKEA did something other than 433MHz (forgot what that standard was called). But as OP said, if they release a series of wireless lights (and battery powered for my intended use) I hope we can get them to work in Domoticz.
OT
I don't really mind paying for Fibaro/Aeon Labs stuff. They usually do good quality thingamabobs, but I have this feeling that if some cheaper lighting were to come out of the woodwork that doesn't try to light up a whole room, and doesn't require a socket for installation - it'll sell like crazy
Just my 2 cents..