Yes they can. Also your fridge and oven will still have incandescent bulbs because more efficient lights aren't great at operating in extreme temperatures.
manufacturers can still build and stores can continue selling:
Appliance lamps, including fridge and oven lights
Black lights
Bug lamps
Colored lamps
Infrared lamps
Left-handed thread lamps
Plant lights
Floodlights
Reflector lamps
Showcase lamps
Traffic signals
Some other specialty lights, including marine lamps and some odd-sized bulbs