There's virtually no other ASIC resistant (i.e. can use GPU) PoW coin left to mine. There's the proof-of-work ETH fork, but it only has a market cap less than 2% of than real ETH. So even though they juiced the block rewards, miner rewards are more than 90% lower, which isn't enough to pay for electricity of the previous hash rate.
Yep. But with that the difficulty is going through the roof and earnings are dropping. Ethereum had A LOT of hash power while ETC isn't really used by anyone so where are the earnings supposed to come from. It's not going to be economically viable because the electricity is a fixed cost, even if some individual miners are trying it out.
There is a new PoW fork that was started by miners that want to continue mining. Some of the work could go there assuming it doesn't tank. I personally don't see the utility though, doubt it will be able to attract many users.