What do you says "about the end of ETH mining" ?
Because the PoS with ETH : it will never come.
Because the poor performance of AMD GPUs with ETH in the near future ?
You're right, but ETH mining will not be ended because AMD GPUs are useless : it is still the nVidia GPUs mining, and without the AMD GPUs hashrate, the nVidia GPUs will earn a lot (lower difficulty).
But, if you only want to switch from ETH mining to an other coin, one more time, it's depends of what GPUs you have.
For example, AMD GPUs can't mine a lot of coin and some very interesting coins.
POS for ETH is just a matter of time, though it has been delayed a few times it's starting to look like the Metropolis "hybrid trial" IS going to happen late this year.
1% allocated to POS 99% to POW won't kill mining, or even have a noticeable effect on profitability, but it's a step towards the end.
The "DAG file size" issue with AMD cards won't kill mining. It will affect profitability and might drive a few MARGINAL miners out of ETH, but it's not enough of an issue to kill ETH mining.
It might be enough to drive some folks to NVidia cards instead of AMD, especially the 1060 and 1070, as long as AMD pricing continues to be GOUGE and AMD availability remains very limited, but it would appear that the mining-specific AMD models are having somewhat of an impact on the pricing and availability issues.
AMD cards can mine quite a few other coins well, but there are SOME that are going to remain NVidia strongholds.
It's going to be a largely moot point though, if pricing doesn't start climbing again.
Profitability RIGHT NOW is back down to about the same level it was at last summer, which wasn't enough to support any serious growth in ETH mining farms - and the last 2-3 weeks of price moves indicate it's probably a VERY HIGH RISK to get into ETH mining at this point unless you have FREE or VERY VERY CHEAP electric to survive a possible "price drop driven shakeout" over the next few weeks.
