Unless they're translating it badly, it can't be just fTP adjusts because they'd be wording it as scythe weaponskill adjustments instead of scythe adjustments.
It's either an fTP change... or Scythe gets its own pDIF cap that's higher than the highest pDIF cap (4.25 for 2handers).
Which would be really weird. But then H2H and GK sit down at 0.25 less of a pDIF cap than other "2handers"...
But both sides just say an adjust to the damage calculations... which could either be the pDIF multiplier or the fTP multiplier. (I doubt they're going to go as far as the H2H and make any of the Scythe WSs that don't already transfer fTP transfer.)