Will there be future growth for "rookie" Cards?

Hello guys, I was wondering what your thoughts are on the future value of “rookie” cards or the 1st appearance of Pokemon. I have always loved and collected the first appearance of my favorite Pokemon (primarily the 3rd generation). I am wondering if cards like the first appearance of 3rd generation starters in the European POP exclusives will grow in value since they were the first printing of the 3 greatest starters and the greatest generation :blush: . What are your thoughts? Thanks