Opponents to redenomination are describing ignorant buyers/sellers in their "lost wealth" arguments, but they are blaming redenomination for the loss. Whether gil is universally cut to 1/10th or not has no effect on people's business acumen, spending habits, avarice or lack thereof. These values will not change in 2.0.

If a seller marks an item at 1.0 prices, he doesn't understand how redenomination works--or he doesn't care.
If a buyer purchases an item for 1.0 prices, he doesn't understand how redenomination works--or he doesn't care.

The experience will be similar to a patch day inflation when new items are introduced. I think the last rush FFXIV had was with DoH hats. How long did that last?