I just don't see it happening. From what I've researched, respectable people has pointed out at Casper falling short to deliver, and the sharding method is also pretty flawed. In other words Vitalik is fucked and so are ETH bagholders. I would hold if I was bagholding tho. If a coin can pump due fiat cows injecting money into it then thats ETH. But once you break even then dump it unless you want to risk it for another leg up.
wonder who is respectable in your sense and as if what your respectable person think matters.
Coders who have been in the game for years and involved in bitcoin since the beginning and understand the different mechanics and also game theories involved have critisized sharding and casper. Some Core devs commented on it, Chris from Bitcoin Uncensored did an interview with an ETH dev and exposed some of the bullshit, also people that posted here like monsterer seemed pretty smart, and also iamnotback aka anonymint was skeptic about it ever working out or straight calling it bullshit.
Heres the interview of Chris with this one ETH dev:
https://www.youtube.com/watch?v=bj_Qpvx-GPM&list=PLqwJ8pFu44ZDkXbOSlFzP-HEsN51W5vi9