Well like you said Star Wolves 2,A.I.M. 2 and Parkan 2 are all available for purchase via download on gamersgate(I bought them all),but retail boxed versions are scarce.
After some searching,I do see that you can get a boxed version of Star wolves 2,but it ain't easy. Digital distribution is the future,it's cost effective and faster that normally,so I doubt we'll see boxed versions unless there is a huge demand for a certain game,let's say a game like fantasy wars or Dungeon Cleaners(I hope).
But I'm no expert at this,so I let Evgeny explain or someone else who beats him to it.