My answer is yes, life continues at other levels of existence, in a process of evolution that's infinite. Yes, we leave these skins and egos behind, but their memories and qualities don't vanish, no information is lost in the Universe. No, those who depart this plain don't stop feeling for those who remain.
I know this because I've worked extensively on the subject of death. I've written a lot about it since I joined Hive, here are a couple of posts you might find interesting.
https://peakd.com/hive-120078/@drrune/my-good-friend-death-and-how-i-found-joy-through-sorrow
https://peakd.com/hive-181017/@drrune/death-as-a-function-of-life--rune-of-the-day