You'd think that a 10x42 cassette (rumor says this is the spread we're looking at) woud include massive, awkward jumps between gears, yet the spacing here doesn't look nearly as funky as you might expect it would. Only time (saddle time, that is) will tell how it actually rides.

SRAM XX1 cassette is rumored to host a 10×42 spread, which would give it an impressively wide gear range.