Well, if you only have 1 sign up bonus you should get to keep your miles and trips. 2 sign up bonuses are also safe for now. That's a good sign up bonus on Citi AA and also the card is useful if you want free bags. Do be aware they have recently moved to dynamic pricing so expect prices to increase wherever it is you are going. Play around with potential flights paying with miles to get an idea of how many miles you could be looking at. As mentioned above the biz variety won't hurt your 5/24 status.
TL;DR on the sAAga... If you got multiple sign up bonuses over the last few years you are in danger of having all your miles taken away from you and all your tickets cancelled because AA says you "exploited" their frequent flier program.
For general discussion and questions on the sAAga we've moved that to our Reddit group DISchurners which everyone here is welcome to join, just send
@SouthFayetteFan a message here on the DIS.