I don't think all exchanges will delist XRP (maybe most US exchanges will do it). But even if they delist it, deposit them to chips and use them for mining. In the long term, you will loose all your XRP (due to the house edge), but you will have won chips token and thus receive daily dividends in BTC, ETH, TRX, USDT and XRP.
I think all US exchanges will delist XRP if there is no flip on the lawsuit on XRP. Non-USA exchanges are enough to keep XRP game going. They are still one of good crypto to move your fund with cheap fees and fast waiting time.
If I am worrying about price dump, after make deposits, I will convert XRP to USDT (stable coin). If I am worrying about XRP, I would worry about USDT too (lawsuit on USDT). Hm life is never easy.