So ,why not ? i was reading through TESO battlegrounds and there are a few maps ,like 3 or 4 but each one have different modes ,ctf, conquest,dm, so why not using existing maps and ad diferent modes in gw2 ?.
A few examples:
A Legacy annihilation mode where side nodes are buffs (on a timer) and lord kill prevents respawning.
A spirit watch flag run mode where the objetive is to take the thingy to the three points and you can pass it like huttball in swtor.
A CTF stronghold mode without npcs ,make it 10vs10 due to map size.
I mean i like conquest mode but playing the same builds on the same map on the same mode gets stale after years.