Personally, my plans do not change. It would suck, but I've ran all the numbers through various calculators (tsp, ebis, firecalc, aarp, etc, etc) and, while I may have to reduce in-retirement spending, it would not be enough of a reduction to change my current course. Due to my own reasons, I figured I'd retire at MRA rather than early (unless, by some miracle, my crew became eligible to retire under early outs), when I'll have 35 years in.
I've also been very lucky to escape a bad environment and jump into a new (but related) career at a new location. I don't take it for granted that anything can change on a dime, but right now, I really enjoy my schedule, don't mind the work, and have a lot of down-time related perks that I would hate to see go. My current boss isn't so bad either.
So, the changes aren't enough to make me jump ship with the current job, where, if I was still stuck in my old one, I'd really be considering exiting federal service. And, I saved big enough, early enough, that I don't plan to change that approach either.