This is really interesting. This year we have three different RPGs inspired by D&D 4e: 13th age v 2 (I just got the near-final PDFs a couple of days ago), Daggerheart (PDF on my desktop, physical book on the way), and Draw Steel coming out in a few months. All three also have open community licenses to ensure people can write products for all of them for as long as we can see.
I don't want to hear another "I sure wish WOTC would go back to 4e" statement again. We have tons of 4e-influenced RPGs developed by passionate designers unconstrained by the marketing whims of a big publicly traded company. It's a pretty awesome time!