Perhaps it would just be a nice feeling to know that after he helped Littlefoot as much as he did, that he survived to the end of his natural life, or is still alive. Seeing him again, even as a quick "cameo", wouldn't be a bad idea to include at some point in the TV series. However, perhaps the crowd that would be most likely to watch the series would hardly recognize Rooter even if they saw him. Even so, I think such an addition could bring back, as you stated Littlefoot1616, fond memories of the good ol' days B)