We know from the bits from Arianne II, which Martin read at a convention about a year ago, that Arianne is at Griffin's Roost. So, she traveled from Sunspear to Griffin's Roost within the span of two chapters. Back in ADwD, a journey like this would've taken 12 chapters.
So, here's to hoping that Martin finally ramps up the pace.
Apparently there was a Tyrion chapter online, in which Victarion finally reaches his destination. So yes, if that's right, GRRM has indeed ramped it up. Write like the wind etc.