Bitcoin is a really popular and there are lot of problems that made the bitcoin stronger and more popular, still no Satoshi Nakamoto appeared. I think he is now just enjoying the fact that everyone is using his digital currency, I think he still cares about his digital currency, we just dont know that for sure, but I think, he is just there.
I too feel the same about Satoshi, but there is a part in everyone's heart which feels to hear his thoughts about everything which is going on and the difficulties we are going through..