I have found a workaround that may be helpful. 

Go into the project, click on transactions.

Filter - all invoices or open invoices, whatever you need

Filter - date for all time, or your required date range.

This should produce the information usually included on a statement. 

Then I exported to excel, gave it a title, added my logo, add/delete anything I need/don't want.  (I actually opened the file in numbers not excel, but whatever you work with).

Export to PDF and email to the client.

I feel like customer statements that can be broken out by project is a vital feature that was included in Desktop, but hopefully this can help someone who needs the information right now until they get it integrated into QBO (which will probably be never, based on the fact that people have been asking for this for almost 3 years now and we've got crickets.)