Im currently playing GW1 again and unlocking all the stuff in HoM.
Now my question is: If I link both accounts now will I still be able to unlock things in HoM later or will they simply not count?
Points earned in the Hall of Monuments after the accounts have been linked will still count. You will need to visit the ghost of Kimmes in the Ruins of the Hall of Monuments in Guild Wars 2 once you have earned a new reward in order to obtain it.
One trick you can try, in GW1 talk to Kimmes and cycle between personal and account achievements, then log out and back in. Sometimes that helps to activate the achievements.
^This. If you’ve done this already and you are still unable to get your rewards, please submit a ticket so that an agent can look into your particular situation.
