It will be interesting to see which company is willing to mine at a loss for 2 weeks. (If the price doesn't double beforehand)
like ti was said, there will be profit for anyone with a s7 and 0.05 electricty, even before the halving
one s7 consume $45 per month and earn you $300 per month(1.2 btc) after the halving, you have still 45 vs 150