Damn he's only had 1 PFL fight and already free soon? What a rip off for PFL.
Anyways I think it makes sense for Ngannou to return to UFC.
Boxing is out of big fights they can sell Ngannou in besides Wilder who is already considered washed up.
PFL has no real HWs for Ngannou, they couldn't even find a guy with a ground game in their 1st fight. Also burning so much cash to pay him, when there isn't much return.
Meanwhile UFC has Jones, Aspinall, and Pavlovich or others better than anything PFL can put up.
Ngannou is going to make most money in UFC now. UFC will probably get him cheaper than last negotiations and Ngannou gets to milk the last bit of his career.
Personally I think Ngannou's knees are fucked so his last bouts will all be to cash out. He still hits hard but I bet he loses to either Aspinall or Jones at this point.