The war carried on for an entire year and the First Order was completely crushed at the Battle of Jakku. With that members of the Resistance soon returned home to Berk and they were welcomed with open arms by the people they were forced to leave behind.
Supreme Chancellor Organa continue to rule until his end of term, but during that time he was able to rob the Republic of corruption. He also had the Resistance to join with the Republic, making their fleet much stronger than before.
Now feeling safer the first time in years, the Jedi soon came back into the galaxy and started to rebuild their Order. They even began to re-build their temple on Coruscant and in an effort to remove of corruption from the Senate, specially chosen Jedi were chosen for the Senate Guard where they could monitor the Senators to make sure they were not being deceitful.
As things transpired, Gustav had finally managed to complete his trials and became fledged Jedi Knight and soon returned to his home world of Mandalore and began to help Regent Mala in stabilising it. Dagur too spent many days on Tython doing everything he could to rebuild what he had almost destroyed, but every so often he would make his way to Mandalore and see Mala in private.
Eret was made an honorary citizen of Berk and soon began to rebuild the cities that had been destroyed in the attack. Assisting him in this were Fishlegs and Snotlout, both of whom had been given high praise for their success in destroying the shield generator. The twins however kept on doing what they did best, creating explosions and making mischief.
Rex, now promoted to commander, soon found himself serving the Republic once again and Supreme Chancellor Organa made a decree that any clones that survived the Clone Wars could rejoin and allowed to keep their rank.
Valka took the loss of her love pretty hard, but every time she meditated it felt as if he was in the room beside her. She continued to serve the Jedi Council and began teaching new Padawans in the ways the Force.
As for Ragnar and Heather, the two of them continue to have a relationship as they flew across the galaxy as a perfect team. Eventually they were engaged, but they never allow their feelings to compromise themselves and continue to make the galaxy a safer place.
As for Hiccup and Astrid, the two of them were officially married on Berk and the two of them had a happy life together and soon a new member of the family was with them. Her name was Ingrid Haddock, she was as fearless as her mother and everyone knew what she got from her father.
No one would deny that, no matter what they did evil forces would be on the rise and they had to keep vigilant. This time however they would not stand idly by and loud a problem to fester and they soon began to rebuild their future, not sure what it may bring, but they all knew it would be quite an adventure.