I doubt both the chip size and count. Likely the new Bitfury ASIC will be in the 10mm square package or smaller (based on per-chip power dissipation estimates). To get 10TH at 0.09J/GH (assumptions: 90% PSU, string design) gets you about 80GH per chip so 125 chips required. With two boards (if the renders are anything like the final design) you'd need something divisible by two for node width. Two 21x3 strings gets you 0.57V at 126 ASICs and makes for one heck of a dense board if the estimated render dimensions are anything close to actual. Avalon 6 puts 36 ASICs to a board; S7 puts 54; this guy would have 63. Bitfury string designs in the past were fairly sparse, but they were also pulling about 3W per chip instead of 9 so I'd be surprised if the same kind of designs would be as stable under the new chip.
S7, old version s7, 162pcs asic, 54asic/board, new version, 135pcs asic, 45asic/pcs. 1165W on wall, 8.6W/asic,
A6, 80pcs asic, 40pcs asic/board, 1100W, 13.75W/asic.
the 16nm ASIC,100pcs aisc, 50asic/board, 1000w, 10W/asic.
our design must work well.