1. The Grea Gun Run of 2013 didn't stop innovations
Despite the Great Gun Run of 2013, several companies came up with what market would be interested in. Namely, Glock came out with 41 and 42 (and some are still unhappy about .380 acp caliber of 42), while Remington has R51.
2. ARs are de facto people's gun
You really couldn't swing a dead cat without hitting an AR maker or related parts vendor. It is THE people's gun. There were several AR makers not covered and that speak a volume about diverse offerings for this platform
It will be interesting how things progress as long as no external factors influence the industry