K-1 is always part of the 1065 module.  It's just how these can now be printed as a package, which is an improvement for PTO.

E-filing is included in the cost of PTO subscription.  You can refer to the discounted rates in the hyperlink the IRMN posted.

If you are an existing customer, you should have received your custom pricing in the middle of last year based on pre-order you must place by September, although you would only have been charged on Jan 7.

In any case, you should be able to see whatever rates that would apply to you by clicking on Purchase on the left panel in PTO.