There are implications. If I invest in Euro, the fund manager can not convert the fund to Yen. That is not what I invested in, and that is not what I was promised in return for my investment.
If you hold private keys, nothing changes. If you have Bitcoin IOU on exchange and the exchange dont handle the situation well, you can try to sue the exchange. There is nothing like promised return for your investment in Bitcoin though, prices going up or down based on supply and demand only.