We just purchased the 23 Desktop version about a month ago. I don't see them ever getting rid of the Desktop version as it has its own benefits and features Online cannot do. Not sure why they would let us buy it if it wasn't going to be an option as of May. 

Regardless i am still having technical issues with this new version, with its new items categories and add/edit lists module causing my QB to crash with no error messages. 

I have been using QB for 20 yrs. The desktop version has always been the more reliable option. Especially with potential internet issues.