Well ETH was actually suppose to go POS back in Summer of 2016. Now 5 years later and still no POS. One thing that ETH dev team is great at is missing deadlines. So there is no concrete answer when it will go POS.
You bigger issue is that ETH sustains its >$2500 price and that the difficult stops growing. Apparently there are many high tech ETH ASICs out there and it will keep increasing the hashrate for the near future, not good for GPU miners.
POS is your last worry right now.
I think that with this drop in the value of ETH and BTC, they will take a little longer to make the changes.
Regarding the ASIC ETH they are appearing, in an attempt to earn a little more, in this final stretch of the PoW. Of course, all those who mine with the GPU are left with less risk, but that's the market.