We were able to find a workaround to solve the ongoing problems with the quest "Drafting Countermeasures", while the bug-fixing itself continues.
All characters above level 40 won't have to look for Lord Aren anymore to complete the quest, once they log into the game. Please note that it can take a while before all characters are provided with the workaround. If you do not receive the quest as being completed after logging in, please change the channel. This will allow you to continue the quest series.
Although we're happy that we found a solution, we also feel it's not the solution both sides would like to see. Which is why we want you to know that we will continue our work on fixing mentioned quest and correct it in further patches with a proper bug-fix.
Your Runes of Magic Team