I am sure there is a similar thread hidden somewhere, but I have not seen it, so, as the thread title say:
Who is the next alien?
During the time I have followed F1, I have seen Alonso and Kimi entering F1 and immediately raising eyebrows, but I had not really heard about them before (feeder series was never really on TV in my country). Ricciardo also avoided my radar.
In GP2, Hamilton was an obvious star, but Vandoorne proved that being an "obvious star" in a lower formula doesn't mean much in F1. Other drivers in which I thought I spotted greatness was Hulkenberg and Kovalainen, but none of them surpassed "very good". Nico Rosberg... I guess I always saw him as "son of Keke" and never really admitted how good he was. But Lewis was better.
F3 < 2019
I had my eyes on Sebastian Vettel because Schumacher talked him up, but of the (Euro) F3 races I saw him in, he did not impress me much and I was surprised how well he did in F1. Verstappen impressed a lot in 2014, but so did Ocon who won the Championship, also a rookie. Leclerc was impressive at the start of his rookie season, 2015, but faded away. Russel did not really impress either, but neither he or Leclerc drove a Prema.
F3 => 2019
I've seen nothing remarkable, but Piastri might be.
F2 => 2017
Here Leclerc and Russel showed star qualities and they have, so far, kept those intact in F1.
My post Schumacher alien list:
(in order of appearence)
Alonso
Kimi
Vettel (he was at least part alien)
Lewis
Verstappen
Possible aliens that has yet to prove themselves
Leclerc (with a question mark)
Norris
Russel
But where, outside F1, is the next candidate? It has been a while since someone has made the F1 team managers start drooling.
By the way - Hamilton is 36, his neurons are not firing at the rate they did when he was 24. Max Verstappen is 24.