Ethereum 3.0 And what this means for miners

I was interested on hearing your guyses thoughts on Ethereums new announcement to switch to a proof of stake algo.
I was also wondering if in the mean time Ethereum will implement Progpow before ethereum 3.0 launches.
My last speculation is that the Ethereum team may continue to be flaky and set timelines that are A) not realistic or B) not something that they are keen on achieving in the first place.

I am looking forward to hearing your thoughts!
But for now Goodnight.