Well anyone can argue its currently profitable now if you are mining in China or Ireland. We have to define profitability then. Long term, it doesn't matter what price it is, it will always be unprofitable for small time miners who arent in cheap electricity areas of the world.
I say this because we have to consider continued increase in mining hashrate, people who are holding D3s and recently turned them off turning them back on, and any future ASIC creations later on adding to the network. A similar 3 month dump of ASICs by Bitmain would again increase difficulty by x30.
Short term, it would need to increase fourfold to ~$2500 to return half of what Bitcoin is offering, and ~$5000 for it to constitute any meaningful returns compared to Bitcoin in the next few months with current difficulty and ASIC dump.
Could you please tell us what part of the code that refers to mining would you like to vote the number?