Announced by Mauro, WWE, and Triple H. This is the statement from his Instagram @mauroranallo:
THE NXT CHAPTER BEGINS! WWE and I mutually agreed to end my responsibilities on SmackDown having nothing to do with rumors about disputes. As I remained under contract with WWE, we discussed a variety of options. Despite originally agreeing to part ways, there was always a desire to continue working together. We have come to terms on a new agreement that benefits both WWE and me, and I am thrilled to announce I will now be part of the NXT broadcasting team.