Roadmap. Milestones completed are at the end of the list

BETA 17 - Mariner - Viking

* Mariner orbiters 3-9  
* Viking Orbiter  
* Viking Lander  

BETA 18 - Soviet Update

* Propulsion updates  
* Luna  
* Lunokhod  
* (Maybe) Mars 96  

Completed

BETA 15 - First Landing!

First Landing will include the first set of lander parts in order for me to learn all the nuances of their setup in KSP. First release of Missions combining orbiters and lander that I want to to eventually make.

• Update any parts or textures as needed
• New Parts:

Probe Cores

* CAE-200 'Vorona' Round Core (Inspired by Vega)  
* CAE-L165 'Fomalhaut' Rugged Lander Core (Inspired by Venera, donated by Beale)
* 'Landvermesser' Lander Core (Inspired by Surveyor)

Antenna

* CAE-A102 Vorona Medium Dish (Vega, donated by Beale)  
* Landvermesser planar array antenna and solar panel  

Electrical

* CAE-EXXX Solar Panels for Vorona (Inspired by Vega and Venera) 
* Landvermesser battery  

Propulsion parts

* Vorona Engine and Fuel tank (Inspired by Vega)  
* Landvermesser Vernier  
* Landvermesser Solid Retromotor  

Utility Parts

* Vorona Cooling radiators (Inspired by Vega)  
* Fomalhaut landing parachutes  
* Fomalhaut Heatshield and decoupler assembly  

Science Parts

* CAE-CCTV  Vorona Imager Camera (Inspired by Vega)  
* Vorona Magnetometer  
* Landvermesser soil scoop  
* Landvermesser landing site survey camera  
* Science equipment for Fomalhaut  

more...

BETA 16 - Gas Giant Missions

In trying to make smaller updates, this one will be just be Cassini and Juno if time permits

* CA601 'Akula' Advanced HECS core (Inspired by Juno and Kepler)
* CA80 Advanced OKTO core (Inspired by Cassini and others) 
* CA-L120 'Draco' Lander Core (Hyugens) 
* CA-AXXX Antenna Dish (Inspired by Cassini)  
* RCS Boom (Inspired by Cassini) 
* CA-E350/Mag Solar panels (Inspired by Juno) 

BETA 14 - Model/Texture touch-ups

• Redo old models for better detail
• Redo textures and add texture-switching functionality
• New parts:

Probe Cores

* CA-Q04-M 'Tatsujin' Advanced QBE (Inspired by MAVEN and Venus Express)  

Antenna

* CA-A200 Quetzal Dish (Inspired by Pioneer 10, re-design)  
* CA-A500 Tatsujin Dish (Inspired by MAVEN)  
    * CAE-A13 Medium Folding dish (Inspired by Mariner)  

Electrical

* CA-E400MG 1x2 Solar Panels (Inspired by MAVEN)  
* CA-E320/340 Solar Panels (Inspired by Venus/Mars Express)  

Propulsion parts

* 3 Small RCS systems (RS01, RS04, RST)  
* 3 Medium RCS system (RM01, RM03, RM04)  
* CAE-LV35 "Linkor" Service Module (Inspired by Fregat)  
* CA-LV10 "Lahar" LF Engine (Inspired by Akatsuki)  
* CA-MV15 "Trident" MP Engine (Inspired by MAVEN)  
* CA-MT170 Monopropellant Tank (Inspired by MAVEN)  
* CA-LT80 Liquid Fuel tank  
    * Mariner-inspired "Jib" MP Engine

Utility and Control

* CA-RW2 Dual Reaction Wheels  

• Part and other tweaks