I've suggested that myself, it's more logical.
Unless HTC just says no, we've had enough of variants (they have said that), but this time stick to that position.
I'd suppose that any contract commitments by Verizon have to be considered - I doubt seriously they'd offer the two side by side.
The Butterfly/DLX/DNA was the mid-cycle step up from the One X. Verizon seems to go with mid-cycle step ups, look at the Thunderbolt, etc etc.
In which case, the One wouldn't appear until later this year in any case.