Final Fantasy XIV when the relaunch finally comes around. Changes to currency and item properties are among the less interesting of those changes, but they're certainly going to have a big impact on the game. A new update from the development team explains in depth what will be changing, what items will be removed, and what will happen to currency values.
The currency one is what's going to throw the largest number of players for a loop, as the game is reducing all money values to a tenth of what they once were. To reduce numbers, all money is getting the ones digit removed, meaning that players will be 10% as wealthy as they are now, but all vendor prices will be 10% of their current values. Net purchasing power should be identical.
There will also be a number of items removed from the game, altered, or otherwise changed with the new version. Players will lose several key items and ammunition, and other items will be bound to a player to prevent trading. Take a look at the full rundown for all the particulars on graphics, money, and other mechanical shifts to inventory management.