Hopefully as the USD strengthens against the Yuan and Ruble, you'll start to see less international property laundering. Maybe even some will start to sell, putting supply back onto the market and lowering prices.
https://www.google.com/finance?chdnp=1&chdd=1&chds=1&chdv=1&...
With the continually dropping oil prices, the ruble isn't going to get better anytime soon.
Were China to choose to depreciate their currency (especially at a faster rate than they are currently) this could lead to an acceleration in attempts to export capital.
It's not clear which way this linkage works (at least to me)
If the Yuan weakens to USD, the Chinese have less buying power in the U.S. for laundering, and existing launderers will be incentivized to pull out (sell).