A proposed constitutional amendment would make it harder to amend the Missouri constitution if it passed the legislature and was approved by voters. While these proposals have failed in other states, the proposed amendment in Missouri has other provisions which may make it easier to pass. One important factor for this question is that abortion rights will likely be on the ballot in November, and this amendment would make it significantly harder to pass the abortion protections. The amendment has faced opposition from Democrats, and is supported by Republicans.
This question will resolve YES if Missouri makes it harder to amend its state constitution by the end of the year. Any proposal which is able to do this and passes will resolve YES.
https://missouriindependent.com/2024/05/17/missouri-session-initiative-petition-senate/
Barring a special session, this is now very unlikely.