In his fight immediately prior to his first with Conor, he started checking leg kicks from Michael Johnson. Granted, he ate several before he really started paying attention, but he was clearly well trained to react appropriately.
Also of note, he was slamming head kicks into MJ and off the top of my head I can't ever recall Nate using head kicks as legitimate offense before. Nick has historically tossed out some slow, range finding head kicks but more as subterfuge then anything else.
Nate looked like he spent time patching up holes in his game.
So we'll have to see if he approaches it with a renewed commitment.