Well, The Mod has some new Content, besides it also Include the Fleet Mod from Nanaki and Goblin Wizard's Motherships Mod.
But it also Contains stuff from StarRover's Website, Like their Engine Update & GUI Patch.
The Mod has the following stuff:
-Custom Missions, can be Activated at Maintance Stations
-Escorts that can be Bought (Currently Free)
-Content from StarRover's Engine Update(Including AI Enahancements)
-Includes the GUI Mod by Valv_Id (StarRover)
-New Events, these events Work together with the New Missions, especially the Escort ones. (Work in Progress, but Playable)
-New Modules.
-New Ships!
-New Bigships
-New Buyable Motherships(at Goblin Wizard's Maintance Stations Mothership Buy Menu)
-New Systems
-EVE Ships (Currently 2, almost 3 ;-;, Beware: They are Extremely OP and should only be Bought End-Game)
-Hyperjumps! (Deactivated on Custom Active Quests)
-Customizable System "Kobra". It can be Managed at an Maintance Station. (Experimental, Beware: High Lag when entering the System)
-WIP, But Included: Star Wolves 2 Systems. (Its currently impossible to go there, but its still on my ToDo list to add them all, they aren't connected directly but, theres one System which seperates these 2 Universes)
-Bugs...
-Mod Menu Perk, that the Hero gets in an New Game. Also can be got from the Compatibility Options Menu at an Maintance Station (If playing on an older save-file)
-Bank System (A Way to Basically get Income every few Jumps or so)
-Increased Max.Ship size of Random Contacts to somewhere around 5 - 9
Future stuffs
-AI Agents, which basically are CPU-Players, they will have their Mothership and everything

-Ore Convertings -BEWARE: HIGHLY WIP- (Shoot Asteroids that will drop Ores. These can be Converted to other Stuff that makes even More Money when Sold.)
-Basebuilding (In the workings, with Good outcomes until Now) Estimated Release Time: Test Build will be available This or Next Month [Oct-Nov 2015]
[Info: The Basebuilding will have an huge impact on what the Player can and will do, many things will be possible when a player has build his Base, he can basically be his own Faction with the capabilities he will have -
of course it will take a long time to accomplish all features, but it will be definitely worth it once I get it finished]
-Prison Fleets (Escort an Highly valuable Pirate, Corporate, or normal Lawbreaker to an Prison Station, This Event will ONLY occur Local, meaning it will only spawn in when you are in an System where an Prison station is)
[Planned Systems: Not yet Planned]
-More Systems
-More Weapons
-More Modules
-More Custom Quests
-Probably some other Features that didn't got listed on here. oh well.
Edit: 0.5.3G Test Build Released
Next: 0.6.0B Balance Build