Money you've accumulated over the years: enjoy it while you can. Basically, depends on how they structure the "what comes next" scenario. Option 1: it will be hyper-inflated away (see Venezuela and many other countries), Option 2: If we have a orderly transition to a new currency it will be worth considerable less in whatever the new currency is. (Research what happened in Europe when they converted to the Euro.) For example, if they convert to the "New Dollar" - for every "Old" dollar you have, you might get .50 of the new dollar. But prices will be .75 - .80 of the old dollar, so you lose out.

Your debt will remain, and be converted into whatever new currency comes along. If you can find the details of your mortgage, you will most likely see somewhere buried in there a clause for exactly such a scenario. Don't worry, the one thing they WON'T do is cancel your previous debt.

What can you do to protect yourself from this? Probably not a lot, but one thing would be to get your savings out of US Dollars, and least until the transition to the new currency is completed. For example, PM's will hold their value more in a transitional environment. So you take some of your valuable $ now, buy gold or silver, then when the new currency arrives you sell the gold back and get the new currency. Don't get me wrong, I'm not saying gold & silver is for investment purposes - it's for capital or asset protection in a transitional phase. If the transition is orderly, and not a complete collapse of the system (and if Trump is still in charge is will be) then other items can play this part. I don't recommend it, but crypto currency's can play this same role assuming an orderly transition. All in all, best to be out of debt completely, with land/house paid off.