updated readme

README

@@ -124,7 +124,8 @@ however, some milestones you can achieve even now, for instance:
 * finding Raxxla (v1.6.1+ will give you a hint when you might have done so).
 
 As of now, player ranking system and statistics are in the works and planned
-to be introduced in version 1.7 or 1.8. They're going to be unique to awlite.
+to be introduced in version 1.7 or 1.8. They will be loosely based upon Trade
+and Explorer ranking of Elite Dangerous but are going to be unique to awlite.
 
 - I found an awesome trade route in awlite. Can I use it in other Elite games?
 
@@ -133,6 +134,16 @@ basic algorithms, your routes should work there too. Of course, if you want to
 use the same route in a non-text Elite game, then you must also consider other
 difficulties such as police and pirate attacks.
 
+- Is combat system ever going to be introduced in awlite?
+
+Highly unlikely. One of the project goals is to keep it simple.
+
+- Are there going to be any further ship upgrades besides the "hold" command?
+
+Very likely, closer to version 2.0. Particularly, ability to buy another ship
+of a different class (with a much larger cargo bay and 14LY fuel tank) is
+being designed.
+
 - How large is awlite?
 
 As of now, the entire game is contained in a single file with a little under