No more than for all the stuff they’re doing… 
like…
Look: About the change from legendary to epic? - #6 by Xevyr
These are brand new settings they threw in there 
so at least one person at Funcom knows how to add them!!!
But jokes aside, it’s really not too difficult of a change, there’s already numerous other similar checks being made.
Yes, that’s what we’re talking about 
Other settings already exist which affect player damage globally etc.