When will there be the next entry list updated.
If you mean the entry list for the actual tournament, I have no idea. I check the tournament website on a daily basis (link on Page 1), and also the thread in the Challengers section of MTF (Week 20: Cremona, Italy [Winner: Denis Gremelmayr]
You can do the same.
If you mean the entry list for tennis tipping, I am updating this at least twice a day at the moment, and there have been no changes since the last update, so the list on page 1 is current.