Can anyone tell me when the reading list is going to come?????? 😭😭😭😭😭😭

Never probably, for future security either keep account on multiple sites or a main account on site which only lists manga names (they dont give chapters, so they don't get any copyright or other issues).

FAQ on what happened
https://www.mangago.me/home/mangatopic/21255174/
I agree with the user above. You can start re-building your lists, just do it off-site in a spreadsheet or sites like bakaupdates