People are really looking for reasons not to like CFL and LED light bulbs if they complain about power circuits for lighting possibly being designed only to support CFL or LED light bulbs. Existing house and buildings will still have the same sized lighting circuits unless someone rewires them. Also, electric code still requires lighting circuits based on regular incandescent light bulbs. By the time electric code is rewritten to allow smaller lighting circuits, if it ever does, incandescent light bulbs will be but a distant memory.

The most likely change, if any, would be to allow lighting circuits to handle more fixtures. Code requires minimum of 15 amp circuits and that is unlikely to change any time soon.