What happened to the wait list?

When UM 2.4 was still in development, you guys were thinking about putting in a wait list in the version that was currently in the beta stage at the time. I would assume that is the same version as the one that is currently listed as still under development, but I do not see the feature for a wait list, and come to think of it, you had also said that the waveform was supposed to be coming in this version too. Is there a 2nd version that is still under dev. that has these two features? If so, can you give out an ETA for when it will come out, I don’t care how accurate it is, I am just wondering if it will be weeks, months, or maybe even years. Thanks for your help and the newer versions!

Keep up the good work UM team!!!