Now, it's true that transaction processing is complicated. It may be one of the last computing niches to move to cloud technology, and it will probably move there for redundancy rather than cost savings. But the trend is set, the moves will happen, and by 2020 even the markets will no longer be locked in any one data center.
So stay safe. Enjoy the time with your family if you can. Despite global warming this is probably the last time. The next time a hurricane hits New York, trading will continue. Given the 24-7 nature of the global Internet, it's likely the markets will have never shut down at all.
At the time of publication, the author had a position in IBM, MSFT and GOOG.