To flesh this out...
There is little doubt that the large, mostly ignored space in DHS that is taken up by "Streets of America" will be converted for use as some new DHS attraction(s.) They'd have to tear down the building facades and close the "streets."
When that happens, the staging area (Streets of America) for the O-lights will be gone.
That means that Disney would have to find another logical and suitable space to install and display the O-Lights,
or the Lights would have to not be available, at least
for a year or two or more, until another space can be created for them, if that
is even in Disney's future plans for the O-Lights.
This is the reason for the yearly speculation that the current year (whatever year that may be)
will be the last year of the O-Lights (at least for awhile.)