The O-Lights have been rumored to "end after this year" for many years, now.
However, so far, they have come back every year.
If the rumored removal of the "Streets of America" (the O-Lights location) takes place, Disney will likely find a new home for the Lights.
The "Streets of America" are actually the second home of the O-Lights in DHS.
The original spot was in the (now long gone) "suburban neighborhood" section of the Back Lot Tour (also now gone.)