That would bring the network hashrate to 143 PH which is exactly 100 times the current. So profitability would be $4-5/day. Of course it would be insane to release 68000 at the same time, not to mention i don't think they have the production capacity. They haven't even shipped a single 16T miner yet..
68000 off first release would be a monumental task, i would think a tenth of that for the first batch. Will be watching this one from afar but looks like bitmain has a serious competitor if they can produce at mass rates