Backwash Atlas Map Layout

I know a lot of work is going into modifying some endgame features for the next update and this might be something unobtainable but, is there any way to possibly increase the size of the boss arena for this map? I know it's always the same boss from the Apex of Filth but for a boss with heavy AOE damaging moves and curses all over the place there's very little space to run or dodge if you're more of a projectile type player. If not I understand and can just avoid that map landscape all together but, just a suggestion!