According to XRP Ledger developers, on May 27th, XRP Ledger developers submitted a draft amendment called "AMM Swappable Curves", which plans to introduce three types of switchable curves for XRPL native automatic market makers: constant product, concentrated liquidity, and StableSwap. Programmable Smart AMM will also be added in the future. The existing AMM pool will continue to use the current constant product model without migration. Currently, there are over $3 billion worth of tokenized real-world assets on the XRPL chain, but the proposal is still in the draft stage and needs to go through the XRPL amendment voting process, which may take several months and the outcome is uncertain.