I had this situation 2 times, and I had the opportunity to obtain Marc Overmars of 7*... the usuall situation is that if you tank next season you will loose a level.

And nope, is not usuall have this scout list 2 times.... not probable, as I said, if you tank you will loose a level( probably) and if you obtain a 7* scout, and you train this to 8 next season will have 9*.