Task Descriptions, Task Dependencies, Assigned Files to task

I have worked with plenty project management systems and I believe that Zoho is a very good program but these two (Task Descriptions and Task Dependencies) are really missing and are important.

Especially Task Description must not be so hard to add. You cant just write everything about a task to the subject.

Task Dependencies are also very important you need to know what it needs to be done before a task is able to be completed in matters of other tasks.

Finaly, it would be great if I could assing a document to a specific task. As help for my employees or as the results of the work done.

Is there any chance that this features can be implemented any time soon ?
Romeo D. Chavlides