I still play 5e - it's a good game and has such a wide player base. But my favorite current 5-like game is 13th Age. Similar in concept, a bit more narrative, and just some revolution instead of just the evolution of 5e. Well, 5e had some revolution like adv/dis.
There are a bunch of games I want to play so I'd "ditch" 5e in the sense having a group and not playing, but most of them are very different feel and/or genre. Playing N.E.W. or Fate or Gumshoe or AW isn't replacing D&D as long as I'd come back.