The actual Main Street Electrical Parade was gone for a long time, then came back for a short promotional period. It is gone again with no indication of coming back (at least not until they want to for another anniversary years down the road, if they choose to do that again again). It was only back from January 20, 2017 until August 20, 2017. The Paint the Night Parade is kind of its spiritual successor, a modern day light parade. It is also very popular and likely to return to DCA again in the summer once all the Food & Wine festivals are done & peak summer crowds pour in and need somewhere to go when they all can't fit in to Star Wars Land. That is all speculation though, most theorize the eventual return of Paint the Night but Disney hasn't officially announced anything about when/if it will return.