From a squad just 4 years ago, only Ash and Mash remains. Which tells us, most the current crop will not last through the next two years.
If we get really good, it would be a result of better academies and more talented individuals coming through the next 5-7 years or so.
I dont think you will recognize many faces from a world class BD team in the next 10 years from today. Although my hunch says Mash and Shakib might be nearing the end of their careers by then.
So your answer is, wait 10 years. Its not here yet and it wont be my current boys. Although, that does NOT mean this team wont give us good memories. In fact, strong wins from this team will inspire the better teams in the future.
Its a good question though, thanks 4 asking.