You are entitled to enjoy every possible update of this "Evocación"
Sorry, no. What is purchased by you and offered by Musesamples is what it is.
There are enough MP3 demo's and several walkthroughs provided to find out if things are appealing enough for you to decide to purchase AG4.
"Evocación" has a fantastic a manual , it is part of your purchase, under documentation.
There is an extensive walkthrough about the knobs and the GUI in general. Also the manual is of course explanatory.
Of course you should use your favorite plugins for EQ-ing, a proper reverb one, plus possibly a spacialization plugin (MIR, Spat, VSS etc.) to get the result according to your taste.