Basically if you already own the gear and have free or cheap electricity, then go ahead and get back into mining.
If you don't have the GPUs and your electricity is greater than 10 cents a KwH then you should hold off for now and see where the future takes us. You should also take into account the next Ethereum fork upgrade which will reduce the issuance to 2 ETH per block from 3 ETH per block, so there is another mining profit reduction right there.
Even power at 10 cents is barely breaking even now (btc at $3790 as I type)
On WTM if I input 85x 570's @ 10 cents the profit is $0.48 cents per day TOTAL. not per card lol

Also consider that sites like what-to-mine use the most optimistic projections possible, meaning your pool never runs into a bad streak of luck, your miners also never get into a slump for guessing shares, none of you rigs goes off for more than a minute, and on and on. Highly unrealistic and is usually estimating your income to be about 2-3% higher than it will be over the long term.
In any case, with an estimated profit at roughly 0.5 cents per GPU, it is not even worth considering. Even at 8 cent power with the unknowns and unseen overheads factored in, it is still a wash. People with 6 cent power may be desperately clinging to low profits, but in all cases except for the free power grabbers, I think most miners are now mining at a loss or in the best case barely breakeven conditions.