I read that someone suggested that the gates into the church should always be open; I think that's a wonderful idea, but since that hasn't been implemented, I have another suggestion to improve the map:
Most of you are aware that Epic Games is tinkering with weapon swaps, so why not switch up Mercy weapon swaps?
I would like to see what would happen if the grenades got swapped with the digger/boomshot, while the grenades themselves are put in the church. I feel like this would be more interesting because a larger portion of the map would be used in order to play for the digger/boomshot (which IMO are much more valuable than grenades in most situations).
The church is a very important part of the map due to the weapons it currently contains, yet it is a very small portion of the whole map. Maybe switching these weapons would encourage more map usage - That is why I feel that changing the swaps could be for the better, IMO.